linux-stable.git/drivers/staging, branch v4.14.45 Linux kernel stable tree staging: lustre: lmv: correctly iput lmo_root 2018-05-25T14:17:44+00:00 NeilBrown neilb@suse.com 2018-02-22T22:09:33+00:00 43624647a97c113e71ab23775b295ba0cccf0319 [ Upstream commit 17556cdbe6ed70a6a20e597b228628f7f34387f8 ] Commit 8f18c8a48b73 ("staging: lustre: lmv: separate master object with master stripe") changed how lmo_root inodes were managed, particularly when LMV_HASH_FLAG_MIGRATION is not set. Previously lsm_md_oinfo[0].lmo_root was always a borrowed inode reference and didn't need to by iput(). Since the change, that special case only applies when LMV_HASH_FLAG_MIGRATION is set In the upstream (lustre-release) version of this patch [Commit 60e07b972114 ("LU-4690 lod: separate master object with master stripe")] the for loop in the lmv_unpack_md() was changed to count from 0 and to ignore entry 0 if LMV_HASH_FLAG_MIGRATION is set. In the patch that got applied to Linux, that change was missing, so lsm_md_oinfo[0].lmo_root is never iput(). This results in a "VFS: Busy inodes" warning at unmount. Fixes: 8f18c8a48b73 ("staging: lustre: lmv: separate master object with master stripe") Signed-off-by: NeilBrown <neilb@suse.com> Reviewed-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 17556cdbe6ed70a6a20e597b228628f7f34387f8 ]

Commit 8f18c8a48b73 ("staging: lustre: lmv: separate master object
with master stripe") changed how lmo_root inodes were managed,
particularly when LMV_HASH_FLAG_MIGRATION is not set.
Previously lsm_md_oinfo[0].lmo_root was always a borrowed
inode reference and didn't need to by iput().
Since the change, that special case only applies when
LMV_HASH_FLAG_MIGRATION is set

In the upstream (lustre-release) version of this patch [Commit
60e07b972114 ("LU-4690 lod: separate master object with master
stripe")] the for loop in the lmv_unpack_md() was changed to count
from 0 and to ignore entry 0 if LMV_HASH_FLAG_MIGRATION is set.
In the patch that got applied to Linux, that change was missing,
so lsm_md_oinfo[0].lmo_root is never iput().
This results in a "VFS: Busy inodes" warning at unmount.

Fixes: 8f18c8a48b73 ("staging: lustre: lmv: separate master object with master stripe")
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: ks7010: Use constants from ieee80211_eid instead of literal ints. 2018-05-25T14:17:43+00:00 Quytelda Kahja quytelda@tamalin.org 2018-03-01T05:19:07+00:00 281bb7920cc0cd3e3bbe06b48a3d42b2dbeaa3cc [ Upstream commit dc13498ab47fdfae3cda4df712beb2e4244b3fe0 ] The case statement in get_ap_information() should not use literal integers to parse information element IDs when these values are provided by name in 'enum ieee80211_eid' in the header 'linux/ieee80211.h'. Signed-off-by: Quytelda Kahja <quytelda@tamalin.org> Reviewed-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit dc13498ab47fdfae3cda4df712beb2e4244b3fe0 ]

The case statement in get_ap_information() should not use literal integers
to parse information element IDs when these values are provided by name
in 'enum ieee80211_eid' in the header 'linux/ieee80211.h'.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Reviewed-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr 2018-05-25T14:17:43+00:00 Colin Ian King colin.king@canonical.com 2018-02-28T11:28:49+00:00 d5ae597ed13da51d203adea4deb524728c45da71 [ Upstream commit e1a7418529e33bc4efc346324557251a16a3e79b ] Currently the allocation of priv->oldaddr is not null checked which will lead to subsequent errors when accessing priv->oldaddr. Fix this with a null pointer check and a return of -ENOMEM on allocation failure. Detected with Coccinelle: drivers/staging/rtl8192u/r8192U_core.c:1708:2-15: alloc with no test, possible model on line 1723 Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit e1a7418529e33bc4efc346324557251a16a3e79b ]

Currently the allocation of priv->oldaddr is not null checked which will
lead to subsequent errors when accessing priv->oldaddr.  Fix this with
a null pointer check and a return of -ENOMEM on allocation failure.

Detected with Coccinelle:
drivers/staging/rtl8192u/r8192U_core.c:1708:2-15: alloc with no test,
possible model on line 1723

Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: fsl-dpaa2/eth: Fix incorrect casts 2018-05-25T14:17:43+00:00 Ioana Radulescu ruxandra.radulescu@nxp.com 2018-02-26T16:28:06+00:00 20b9506df1b40367c782bd98a77497e3021baaa1 [ Upstream commit 75c583ab9709692a60871d4719006391cde8dc1d ] The DPAA2 Ethernet driver incorrectly assumes virtual addresses are always 64b long, which causes compiler errors when building for a 32b platform. Fix this by using explicit casts to uintptr_t where necessary. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 75c583ab9709692a60871d4719006391cde8dc1d ]

The DPAA2 Ethernet driver incorrectly assumes virtual addresses
are always 64b long, which causes compiler errors when building
for a 32b platform.

Fix this by using explicit casts to uintptr_t where necessary.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: lustre: fix bug in osc_enter_cache_try 2018-05-25T14:17:43+00:00 NeilBrown neilb@suse.com 2018-03-01T23:31:25+00:00 ff8eb22e5bb83ffc8fb3e633711cf3fc785dd60f [ Upstream commit 2fab9faf9b27298c4536c1c1b14072ab18b8f80b ] The lustre-release patch commit bdc5bb52c554 ("LU-4933 osc: Automatically increase the max_dirty_mb") changed - if (cli->cl_dirty + PAGE_CACHE_SIZE <= cli->cl_dirty_max && + if (cli->cl_dirty_pages < cli->cl_dirty_max_pages && When this patch landed in Linux a couple of years later, it landed as - if (cli->cl_dirty + PAGE_SIZE <= cli->cl_dirty_max && + if (cli->cl_dirty_pages <= cli->cl_dirty_max_pages && which is clearly different ('<=' vs '<'), and allows cl_dirty_pages to increase beyond cl_dirty_max_pages - which causes a latter assertion to fails. Fixes: 3147b268400a ("staging: lustre: osc: Automatically increase the max_dirty_mb") Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 2fab9faf9b27298c4536c1c1b14072ab18b8f80b ]

The lustre-release patch commit bdc5bb52c554 ("LU-4933 osc:
Automatically increase the max_dirty_mb") changed

-       if (cli->cl_dirty + PAGE_CACHE_SIZE <= cli->cl_dirty_max &&
+       if (cli->cl_dirty_pages < cli->cl_dirty_max_pages &&

When this patch landed in Linux a couple of years later, it landed as

-       if (cli->cl_dirty + PAGE_SIZE <= cli->cl_dirty_max &&
+       if (cli->cl_dirty_pages <= cli->cl_dirty_max_pages &&

which is clearly different ('<=' vs '<'), and allows cl_dirty_pages to
increase beyond cl_dirty_max_pages - which causes a latter assertion
to fails.

Fixes: 3147b268400a ("staging: lustre: osc: Automatically increase the max_dirty_mb")
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: bcm2835-audio: Release resources on module_exit() 2018-05-25T14:17:43+00:00 Kirill Marinushkin k.marinushkin@gmail.com 2018-03-23T19:32:54+00:00 bf30d26981a857454bf9c71edc61fccc42dd6b83 [ Upstream commit 626118b472d2eb45f83a0276a18d3e6a01c69f6a ] In the current implementation, `rmmod snd_bcm2835` does not release resources properly. It causes an oops when trying to list sound devices. This commit fixes it. The details WRT allocation / free are described below. Device structure WRT allocation: pdev \childdev[] \card \chip \pcm \ctl Allocation / register sequence: * childdev: devm_kzalloc - freed during driver detach * childdev: device_initialize - freed during device_unregister * pdev: devres_alloc - freed during driver detach * childdev: device_add - removed during device_unregister * pdev, childdev: devres_add - freed during driver detach * card: snd_card_new - freed during snd_card_free * chip: kzalloc - freed during kfree * card, chip: snd_device_new - freed during snd_device_free * chip: new_pcm - TODO: free pcm * chip: new_ctl - TODO: free ctl * card: snd_card_register - unregistered during snd_card_free Free / unregister sequence: * card: snd_card_free * card, chip: snd_device_free * childdev: device_unregister * chip: kfree Steps to reproduce the issue before this commit: ~~~~ $ rmmod snd_bcm2835 $ aplay -L [ 138.648130] Unable to handle kernel paging request at virtual address 7f1343c0 [ 138.660415] pgd = ad8f0000 [ 138.665567] [7f1343c0] *pgd=3864c811, *pte=00000000, *ppte=00000000 [ 138.674887] Internal error: Oops: 7 [#1] SMP ARM [ 138.683571] Modules linked in: sha256_generic cfg80211 rfkill snd_pcm snd_timer snd fixed uio_pdrv_genirq uio ip_tables x_tables ipv6 [last unloaded: snd_bcm2835 ] [ 138.706594] CPU: 3 PID: 463 Comm: aplay Tainted: G WC 4.15.0-rc1-v 7+ #6 [ 138.719833] Hardware name: BCM2835 [ 138.726016] task: b877ac00 task.stack: aebec000 [ 138.733408] PC is at try_module_get+0x38/0x24c [ 138.740813] LR is at snd_ctl_open+0x58/0x194 [snd] [ 138.748485] pc : [<801c4d5c>] lr : [<7f0e6b2c>] psr: 20000013 [ 138.757709] sp : aebedd60 ip : aebedd88 fp : aebedd84 [ 138.765884] r10: 00000000 r9 : 00000004 r8 : 7f0ed440 [ 138.774040] r7 : b7e469b0 r6 : 7f0e6b2c r5 : afd91900 r4 : 7f1343c0 [ 138.783571] r3 : aebec000 r2 : 00000001 r1 : b877ac00 r0 : 7f1343c0 [ 138.793084] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 138.803300] Control: 10c5387d Table: 2d8f006a DAC: 00000055 [ 138.812064] Process aplay (pid: 463, stack limit = 0xaebec210) [ 138.820868] Stack: (0xaebedd60 to 0xaebee000) [ 138.828207] dd60: 00000000 b848d000 afd91900 00000000 b7e469b0 7f0ed440 aebedda4 aebedd88 [ 138.842371] dd80: 7f0e6b2c 801c4d30 afd91900 7f0ea4dc 00000000 b7e469b0 aebeddcc aebedda8 [ 138.856611] dda0: 7f0e250c 7f0e6ae0 7f0e2464 b8478ec0 b7e469b0 afd91900 7f0ea388 00000000 [ 138.870864] ddc0: aebeddf4 aebeddd0 802ce590 7f0e2470 8090ab64 afd91900 afd91900 b7e469b0 [ 138.885301] dde0: afd91908 802ce4e4 aebede1c aebeddf8 802c57b4 802ce4f0 afd91900 aebedea8 [ 138.900110] de00: b7fa4c00 00000000 00000000 00000004 aebede3c aebede20 802c6ba8 802c56b4 [ 138.915260] de20: aebedea8 00000000 aebedf5c 00000000 aebedea4 aebede40 802d9a68 802c6b58 [ 138.930661] de40: b874ddd0 00000000 00000000 00000001 00000041 00000000 afd91900 aebede70 [ 138.946402] de60: 00000000 00000000 00000002 b7e469b0 b8a87610 b8d6ab80 801852f8 00080000 [ 138.962314] de80: aebedf5c aebedea8 00000001 80108464 aebec000 00000000 aebedf4c aebedea8 [ 138.978414] dea0: 802dacd4 802d970c b8a87610 b8d6ab80 a7982bc6 00000009 af363019 b9231480 [ 138.994617] dec0: 00000000 b8c038a0 b7e469b0 00000101 00000002 00000238 00000000 00000000 [ 139.010823] dee0: 00000000 aebedee8 00080000 0000000f aebedf3c aebedf00 802ed7e4 80843f94 [ 139.027025] df00: 00000003 00080000 b9231490 b9231480 00000000 00080000 af363000 00000000 [ 139.043229] df20: 00000005 00000002 ffffff9c 00000000 00080000 ffffff9c af363000 00000003 [ 139.059430] df40: aebedf94 aebedf50 802c6f70 802dac70 aebec000 00000000 00000001 00000000 [ 139.075629] df60: 00020000 00000004 00000100 00000001 7ebe577c 0002e038 00000000 00000005 [ 139.091828] df80: 80108464 aebec000 aebedfa4 aebedf98 802c7060 802c6e6c 00000000 aebedfa8 [ 139.108025] dfa0: 801082c0 802c7040 7ebe577c 0002e038 7ebe577c 00080000 00000b98 e81c8400 [ 139.124222] dfc0: 7ebe577c 0002e038 00000000 00000005 7ebe57e4 00a20af8 7ebe57f0 76f87394 [ 139.140419] dfe0: 00000000 7ebe55c4 76ec88e8 76df1d9c 60000010 7ebe577c 00000000 00000000 [ 139.156715] [<801c4d5c>] (try_module_get) from [<7f0e6b2c>] (snd_ctl_open+0x58/0x194 [snd]) [ 139.173222] [<7f0e6b2c>] (snd_ctl_open [snd]) from [<7f0e250c>] (snd_open+0xa8/0x14c [snd]) [ 139.189683] [<7f0e250c>] (snd_open [snd]) from [<802ce590>] (chrdev_open+0xac/0x188) [ 139.205465] [<802ce590>] (chrdev_open) from [<802c57b4>] (do_dentry_open+0x10c/0x314) [ 139.221347] [<802c57b4>] (do_dentry_open) from [<802c6ba8>] (vfs_open+0x5c/0x88) [ 139.236788] [<802c6ba8>] (vfs_open) from [<802d9a68>] (path_openat+0x368/0x944) [ 139.248270] [<802d9a68>] (path_openat) from [<802dacd4>] (do_filp_open+0x70/0xc4) [ 139.263731] [<802dacd4>] (do_filp_open) from [<802c6f70>] (do_sys_open+0x110/0x1d4) [ 139.279378] [<802c6f70>] (do_sys_open) from [<802c7060>] (SyS_open+0x2c/0x30) [ 139.290647] [<802c7060>] (SyS_open) from [<801082c0>] (ret_fast_syscall+0x0/0x28) [ 139.306021] Code: e3c3303f e5932004 e2822001 e5832004 (e5943000) [ 139.316265] ---[ end trace 7f3f7f6193b663ed ]--- [ 139.324956] note: aplay[463] exited with preempt_count 1 ~~~~ Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: Michael Zoran <mzoran@crowfest.net> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: devel@driverdev.osuosl.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 626118b472d2eb45f83a0276a18d3e6a01c69f6a ]

In the current implementation, `rmmod snd_bcm2835` does not release
resources properly. It causes an oops when trying to list sound devices.

This commit fixes it.

The details WRT allocation / free are described below.

Device structure WRT allocation:

pdev
  \childdev[]
    \card
      \chip
        \pcm
        \ctl

Allocation / register sequence:

* childdev: devm_kzalloc      - freed during driver detach
* childdev: device_initialize - freed during device_unregister
* pdev: devres_alloc          - freed during driver detach
* childdev: device_add        - removed during device_unregister
* pdev, childdev: devres_add  - freed during driver detach
* card: snd_card_new          - freed during snd_card_free
* chip: kzalloc               - freed during kfree
* card, chip: snd_device_new  - freed during snd_device_free
* chip: new_pcm               - TODO: free pcm
* chip: new_ctl               - TODO: free ctl
* card: snd_card_register     - unregistered during snd_card_free

Free / unregister sequence:

* card: snd_card_free
* card, chip: snd_device_free
* childdev: device_unregister
* chip: kfree

Steps to reproduce the issue before this commit:

~~~~
$ rmmod snd_bcm2835
$ aplay -L
[  138.648130] Unable to handle kernel paging request at virtual address 7f1343c0
[  138.660415] pgd = ad8f0000
[  138.665567] [7f1343c0] *pgd=3864c811, *pte=00000000, *ppte=00000000
[  138.674887] Internal error: Oops: 7 [#1] SMP ARM
[  138.683571] Modules linked in: sha256_generic cfg80211 rfkill snd_pcm snd_timer
 snd fixed uio_pdrv_genirq uio ip_tables x_tables ipv6 [last unloaded: snd_bcm2835
]
[  138.706594] CPU: 3 PID: 463 Comm: aplay Tainted: G        WC       4.15.0-rc1-v
7+ #6
[  138.719833] Hardware name: BCM2835
[  138.726016] task: b877ac00 task.stack: aebec000
[  138.733408] PC is at try_module_get+0x38/0x24c
[  138.740813] LR is at snd_ctl_open+0x58/0x194 [snd]
[  138.748485] pc : [<801c4d5c>]    lr : [<7f0e6b2c>]    psr: 20000013
[  138.757709] sp : aebedd60  ip : aebedd88  fp : aebedd84
[  138.765884] r10: 00000000  r9 : 00000004  r8 : 7f0ed440
[  138.774040] r7 : b7e469b0  r6 : 7f0e6b2c  r5 : afd91900  r4 : 7f1343c0
[  138.783571] r3 : aebec000  r2 : 00000001  r1 : b877ac00  r0 : 7f1343c0
[  138.793084] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  138.803300] Control: 10c5387d  Table: 2d8f006a  DAC: 00000055
[  138.812064] Process aplay (pid: 463, stack limit = 0xaebec210)
[  138.820868] Stack: (0xaebedd60 to 0xaebee000)
[  138.828207] dd60: 00000000 b848d000 afd91900 00000000 b7e469b0 7f0ed440 aebedda4 aebedd88
[  138.842371] dd80: 7f0e6b2c 801c4d30 afd91900 7f0ea4dc 00000000 b7e469b0 aebeddcc aebedda8
[  138.856611] dda0: 7f0e250c 7f0e6ae0 7f0e2464 b8478ec0 b7e469b0 afd91900 7f0ea388 00000000
[  138.870864] ddc0: aebeddf4 aebeddd0 802ce590 7f0e2470 8090ab64 afd91900 afd91900 b7e469b0
[  138.885301] dde0: afd91908 802ce4e4 aebede1c aebeddf8 802c57b4 802ce4f0 afd91900 aebedea8
[  138.900110] de00: b7fa4c00 00000000 00000000 00000004 aebede3c aebede20 802c6ba8 802c56b4
[  138.915260] de20: aebedea8 00000000 aebedf5c 00000000 aebedea4 aebede40 802d9a68 802c6b58
[  138.930661] de40: b874ddd0 00000000 00000000 00000001 00000041 00000000 afd91900 aebede70
[  138.946402] de60: 00000000 00000000 00000002 b7e469b0 b8a87610 b8d6ab80 801852f8 00080000
[  138.962314] de80: aebedf5c aebedea8 00000001 80108464 aebec000 00000000 aebedf4c aebedea8
[  138.978414] dea0: 802dacd4 802d970c b8a87610 b8d6ab80 a7982bc6 00000009 af363019 b9231480
[  138.994617] dec0: 00000000 b8c038a0 b7e469b0 00000101 00000002 00000238 00000000 00000000
[  139.010823] dee0: 00000000 aebedee8 00080000 0000000f aebedf3c aebedf00 802ed7e4 80843f94
[  139.027025] df00: 00000003 00080000 b9231490 b9231480 00000000 00080000 af363000 00000000
[  139.043229] df20: 00000005 00000002 ffffff9c 00000000 00080000 ffffff9c af363000 00000003
[  139.059430] df40: aebedf94 aebedf50 802c6f70 802dac70 aebec000 00000000 00000001 00000000
[  139.075629] df60: 00020000 00000004 00000100 00000001 7ebe577c 0002e038 00000000 00000005
[  139.091828] df80: 80108464 aebec000 aebedfa4 aebedf98 802c7060 802c6e6c 00000000 aebedfa8
[  139.108025] dfa0: 801082c0 802c7040 7ebe577c 0002e038 7ebe577c 00080000 00000b98 e81c8400
[  139.124222] dfc0: 7ebe577c 0002e038 00000000 00000005 7ebe57e4 00a20af8 7ebe57f0 76f87394
[  139.140419] dfe0: 00000000 7ebe55c4 76ec88e8 76df1d9c 60000010 7ebe577c 00000000 00000000
[  139.156715] [<801c4d5c>] (try_module_get) from [<7f0e6b2c>] (snd_ctl_open+0x58/0x194 [snd])
[  139.173222] [<7f0e6b2c>] (snd_ctl_open [snd]) from [<7f0e250c>] (snd_open+0xa8/0x14c [snd])
[  139.189683] [<7f0e250c>] (snd_open [snd]) from [<802ce590>] (chrdev_open+0xac/0x188)
[  139.205465] [<802ce590>] (chrdev_open) from [<802c57b4>] (do_dentry_open+0x10c/0x314)
[  139.221347] [<802c57b4>] (do_dentry_open) from [<802c6ba8>] (vfs_open+0x5c/0x88)
[  139.236788] [<802c6ba8>] (vfs_open) from [<802d9a68>] (path_openat+0x368/0x944)
[  139.248270] [<802d9a68>] (path_openat) from [<802dacd4>] (do_filp_open+0x70/0xc4)
[  139.263731] [<802dacd4>] (do_filp_open) from [<802c6f70>] (do_sys_open+0x110/0x1d4)
[  139.279378] [<802c6f70>] (do_sys_open) from [<802c7060>] (SyS_open+0x2c/0x30)
[  139.290647] [<802c7060>] (SyS_open) from [<801082c0>] (ret_fast_syscall+0x0/0x28)
[  139.306021] Code: e3c3303f e5932004 e2822001 e5832004 (e5943000)
[  139.316265] ---[ end trace 7f3f7f6193b663ed ]---
[  139.324956] note: aplay[463] exited with preempt_count 1
~~~~

Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Michael Zoran <mzoran@crowfest.net>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
irqchip/gic-v3: Ignore disabled ITS nodes 2018-04-26T09:02:20+00:00 Stephen Boyd sboyd@codeaurora.org 2018-02-01T17:03:29+00:00 c834b955d3f00789b2c95a6e642a058f12ae9096 [ Upstream commit 95a2562590c2f64a0398183f978d5cf3db6d0284 ] On some platforms there's an ITS available but it's not enabled because reading or writing the registers is denied by the firmware. In fact, reading or writing them will cause the system to reset. We could remove the node from DT in such a case, but it's better to skip nodes that are marked as "disabled" in DT so that we can describe the hardware that exists and use the status property to indicate how the firmware has configured things. Cc: Stuart Yoder <stuyoder@gmail.com> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[ Upstream commit 95a2562590c2f64a0398183f978d5cf3db6d0284 ]

On some platforms there's an ITS available but it's not enabled
because reading or writing the registers is denied by the
firmware. In fact, reading or writing them will cause the system
to reset. We could remove the node from DT in such a case, but
it's better to skip nodes that are marked as "disabled" in DT so
that we can describe the hardware that exists and use the status
property to indicate how the firmware has configured things.

Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
media: staging: lirc_zilog: incorrect reference counting 2018-04-24T07:36:39+00:00 Sean Young sean@mess.org 2018-04-15T09:51:51+00:00 071ff203d962478368bbc84c3c8f9ba40e9fe2b6 [not upstream as the driver is deleted in 4.16 - gregkh] Whenever poll is called, the reference count is increased but never decreased. This means that on rmmod, the lirc_thread is not stopped, and will trample over freed memory. Zilog/Hauppauge IR driver unloaded BUG: unable to handle kernel paging request at ffffffffc17ba640 Oops: 0010 [#1] SMP CPU: 1 PID: 667 Comm: zilog-rx-i2c-1 Tainted: P C OE 4.13.16-302.fc27.x86_64 #1 Hardware name: Gigabyte Technology Co., Ltd. GA-MA790FXT-UD5P/GA-MA790FXT-UD5P, BIOS F6 08/06/2009 task: ffff964eb452ca00 task.stack: ffffb254414dc000 RIP: 0010:0xffffffffc17ba640 RSP: 0018:ffffb254414dfe78 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff964ec1b35890 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 RBP: ffffb254414dff00 R08: 000000000000036e R09: ffff964ecfc8dfd0 R10: ffffb254414dfe78 R11: 00000000000f4240 R12: ffff964ec2bf28a0 R13: ffff964ec1b358a8 R14: ffff964ec1b358d0 R15: ffff964ec1b35800 FS: 0000000000000000(0000) GS:ffff964ecfc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc17ba640 CR3: 000000023058c000 CR4: 00000000000006e0 Call Trace: kthread+0x125/0x140 ? kthread_park+0x60/0x60 ? do_syscall_64+0x67/0x140 ret_from_fork+0x25/0x30 Code: Bad RIP value. RIP: 0xffffffffc17ba640 RSP: ffffb254414dfe78 CR2: ffffffffc17ba640 Note that zilog-rx-i2c-1 should have exited by now, but hasn't due to the missing put in poll(). This code has been replaced completely in kernel v4.16 by a new driver, see commit acaa34bf06e9 ("media: rc: implement zilog transmitter"), and commit f95367a7b758 ("media: staging: remove lirc_zilog driver"). Cc: stable@vger.kernel.org # v4.15- (all up to and including v4.15) Reported-by: Warren Sturm <warren.sturm@gmail.com> Tested-by: Warren Sturm <warren.sturm@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[not upstream as the driver is deleted in 4.16 - gregkh]

Whenever poll is called, the reference count is increased but never
decreased. This means that on rmmod, the lirc_thread is not stopped,
and will trample over freed memory.

Zilog/Hauppauge IR driver unloaded
BUG: unable to handle kernel paging request at ffffffffc17ba640
Oops: 0010 [#1] SMP
CPU: 1 PID: 667 Comm: zilog-rx-i2c-1 Tainted: P         C OE   4.13.16-302.fc27.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. GA-MA790FXT-UD5P/GA-MA790FXT-UD5P, BIOS F6 08/06/2009
task: ffff964eb452ca00 task.stack: ffffb254414dc000
RIP: 0010:0xffffffffc17ba640
RSP: 0018:ffffb254414dfe78 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff964ec1b35890 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246
RBP: ffffb254414dff00 R08: 000000000000036e R09: ffff964ecfc8dfd0
R10: ffffb254414dfe78 R11: 00000000000f4240 R12: ffff964ec2bf28a0
R13: ffff964ec1b358a8 R14: ffff964ec1b358d0 R15: ffff964ec1b35800
FS:  0000000000000000(0000) GS:ffff964ecfc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc17ba640 CR3: 000000023058c000 CR4: 00000000000006e0
Call Trace:
 kthread+0x125/0x140
 ? kthread_park+0x60/0x60
 ? do_syscall_64+0x67/0x140
 ret_from_fork+0x25/0x30
Code:  Bad RIP value.
RIP: 0xffffffffc17ba640 RSP: ffffb254414dfe78
CR2: ffffffffc17ba640

Note that zilog-rx-i2c-1 should have exited by now, but hasn't due to
the missing put in poll().

This code has been replaced completely in kernel v4.16 by a new driver,
see commit acaa34bf06e9 ("media: rc: implement zilog transmitter"), and
commit f95367a7b758 ("media: staging: remove lirc_zilog driver").

Cc: stable@vger.kernel.org # v4.15- (all up to and including v4.15)
Reported-by: Warren Sturm <warren.sturm@gmail.com>
Tested-by: Warren Sturm <warren.sturm@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Revert "media: lirc_zilog: driver only sends LIRCCODE" 2018-04-24T07:36:39+00:00 Sean Young sean@mess.org 2018-04-15T09:51:50+00:00 e7a08ffb2d897f4cfbd7b2931339c4643ad04f64 [not upstream as the driver is deleted in 4.16 - gregkh] The lirc config documented here https://www.blushingpenguin.com/mark/blog/?p=24 uses raw_codes for sending IR. Each key only has one pulse, which in fact is an index into the haup-ir-blaster.bin file. Changing the driver to LIRCCODE (although more accurate) breaks this configuration. This code has been replaced completely in kernel v4.16 by a new driver, see commit acaa34bf06e9 ("media: rc: implement zilog transmitter"), and commit f95367a7b758 ("media: staging: remove lirc_zilog driver"). This reverts commit 89d8a2cc51d1f29ea24a0b44dde13253141190a0. Fixes: 615cd3fe6ccc ("[media] media: lirc_dev: make better use of file->private_data") Cc: stable@vger.kernel.org # v4.14-v4.15 Reported-by: Warren Sturm <warren.sturm@gmail.com> Tested-by: Warren Sturm <warren.sturm@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
[not upstream as the driver is deleted in 4.16 - gregkh]

The lirc config documented here
https://www.blushingpenguin.com/mark/blog/?p=24 uses raw_codes for sending
IR. Each key only has one pulse, which in fact is an index into the
haup-ir-blaster.bin file. Changing the driver to LIRCCODE (although more
accurate) breaks this configuration.

This code has been replaced completely in kernel v4.16 by a new driver,
see commit acaa34bf06e9 ("media: rc: implement zilog transmitter"), and
commit f95367a7b758 ("media: staging: remove lirc_zilog driver").

This reverts commit 89d8a2cc51d1f29ea24a0b44dde13253141190a0.

Fixes: 615cd3fe6ccc ("[media] media: lirc_dev: make better use of file->private_data")

Cc: stable@vger.kernel.org # v4.14-v4.15
Reported-by: Warren Sturm <warren.sturm@gmail.com>
Tested-by: Warren Sturm <warren.sturm@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
media: atomisp_fops.c: disable atomisp_compat_ioctl32 2018-04-24T07:36:25+00:00 Hans Verkuil hverkuil@xs4all.nl 2018-02-25T11:55:32+00:00 9864a1ef86791897b0f6c215001deae472c05635 commit 57e6b6f2303e596a6493078b53be14b789e7b79f upstream. The atomisp_compat_ioctl32() code has problems. This patch disables the compat_ioctl32 support until those issues have been fixed. Contact Sakari or me for more details. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: <stable@vger.kernel.org> # for v4.12 and up Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 57e6b6f2303e596a6493078b53be14b789e7b79f upstream.

The atomisp_compat_ioctl32() code has problems. This patch disables the
compat_ioctl32 support until those issues have been fixed.

Contact Sakari or me for more details.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v4.12 and up
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>