<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/usb, branch v4.9.321</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>usb: chipidea: udc: check request status before setting device address</title>
<updated>2022-07-02T14:17:15+00:00</updated>
<author>
<name>Xu Yang</name>
<email>xu.yang_2@nxp.com</email>
</author>
<published>2022-06-23T03:02:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=47014a0e13fd9c3cda54a0ccaf7885e8f257645e'/>
<id>47014a0e13fd9c3cda54a0ccaf7885e8f257645e</id>
<content type='text'>
commit b24346a240b36cfc4df194d145463874985aa29b upstream.

The complete() function may be called even though request is not
completed. In this case, it's necessary to check request status so
as not to set device address wrongly.

Fixes: 10775eb17bee ("usb: chipidea: udc: update gadget states according to ch9")
cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Xu Yang &lt;xu.yang_2@nxp.com&gt;
Link: https://lore.kernel.org/r/20220623030242.41796-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit b24346a240b36cfc4df194d145463874985aa29b upstream.

The complete() function may be called even though request is not
completed. In this case, it's necessary to check request status so
as not to set device address wrongly.

Fixes: 10775eb17bee ("usb: chipidea: udc: update gadget states according to ch9")
cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Xu Yang &lt;xu.yang_2@nxp.com&gt;
Link: https://lore.kernel.org/r/20220623030242.41796-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: serial: option: add Telit LE910Cx 0x1250 composition</title>
<updated>2022-07-02T14:17:14+00:00</updated>
<author>
<name>Carlo Lobrano</name>
<email>c.lobrano@gmail.com</email>
</author>
<published>2022-06-14T07:56:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=66087addd9905039c3c94267f1878b7c7d02b43b'/>
<id>66087addd9905039c3c94267f1878b7c7d02b43b</id>
<content type='text'>
commit 342fc0c3b345525da21112bd0478a0dc741598ea upstream.

Add support for the following Telit LE910Cx composition:

0x1250: rmnet, tty, tty, tty, tty

Reviewed-by: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Carlo Lobrano &lt;c.lobrano@gmail.com&gt;
Link: https://lore.kernel.org/r/20220614075623.2392607-1-c.lobrano@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 342fc0c3b345525da21112bd0478a0dc741598ea upstream.

Add support for the following Telit LE910Cx composition:

0x1250: rmnet, tty, tty, tty, tty

Reviewed-by: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Carlo Lobrano &lt;c.lobrano@gmail.com&gt;
Link: https://lore.kernel.org/r/20220614075623.2392607-1-c.lobrano@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe</title>
<updated>2022-06-25T09:45:18+00:00</updated>
<author>
<name>Miaoqian Lin</name>
<email>linmq006@gmail.com</email>
</author>
<published>2022-06-03T14:02:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d85e4e6284a91aa2d1ab004e9d84b9c09b4aa203'/>
<id>d85e4e6284a91aa2d1ab004e9d84b9c09b4aa203</id>
<content type='text'>
commit 4757c9ade34178b351580133771f510b5ffcf9c8 upstream.

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
of_node_put() will check NULL pointer.

Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx")
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Miaoqian Lin &lt;linmq006@gmail.com&gt;
Link: https://lore.kernel.org/r/20220603140246.64529-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 4757c9ade34178b351580133771f510b5ffcf9c8 upstream.

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
of_node_put() will check NULL pointer.

Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx")
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Miaoqian Lin &lt;linmq006@gmail.com&gt;
Link: https://lore.kernel.org/r/20220603140246.64529-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: serial: io_ti: add Agilent E5805A support</title>
<updated>2022-06-25T09:45:18+00:00</updated>
<author>
<name>Robert Eckelmann</name>
<email>longnoserob@gmail.com</email>
</author>
<published>2022-05-21T14:08:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=85203393d81b56a4d03a1488ae073c88f5b4dd15'/>
<id>85203393d81b56a4d03a1488ae073c88f5b4dd15</id>
<content type='text'>
commit 908e698f2149c3d6a67d9ae15c75545a3f392559 upstream.

Add support for Agilent E5805A (rebranded ION Edgeport/4) to io_ti.

Signed-off-by: Robert Eckelmann &lt;longnoserob@gmail.com&gt;
Link: https://lore.kernel.org/r/20220521230808.30931eca@octoberrain
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 908e698f2149c3d6a67d9ae15c75545a3f392559 upstream.

Add support for Agilent E5805A (rebranded ION Edgeport/4) to io_ti.

Signed-off-by: Robert Eckelmann &lt;longnoserob@gmail.com&gt;
Link: https://lore.kernel.org/r/20220521230808.30931eca@octoberrain
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: serial: option: add support for Cinterion MV31 with new baseline</title>
<updated>2022-06-25T09:45:18+00:00</updated>
<author>
<name>Slark Xiao</name>
<email>slark_xiao@163.com</email>
</author>
<published>2022-06-01T03:47:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=e69721e7f44299109bc1106145daa953bc861f1d'/>
<id>e69721e7f44299109bc1106145daa953bc861f1d</id>
<content type='text'>
commit 158f7585bfcea4aae0ad4128d032a80fec550df1 upstream.

Adding support for Cinterion device MV31 with Qualcomm
new baseline. Use different PIDs to separate it from
previous base line products.
All interfaces settings keep same as previous.

Below is test evidence:
T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b8 Rev=04.14
S:  Manufacturer=Cinterion
S:  Product=Cinterion PID 0x00B8 USB Mobile Broadband
S:  SerialNumber=90418e79
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b9 Rev=04.14
S:  Manufacturer=Cinterion
S:  Product=Cinterion PID 0x00B9 USB Mobile Broadband
S:  SerialNumber=90418e79
C:  #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option

For PID 00b8, interface 3 is GNSS port which don't use serial driver.

Signed-off-by: Slark Xiao &lt;slark_xiao@163.com&gt;
Link: https://lore.kernel.org/r/20220601034740.5438-1-slark_xiao@163.com
[ johan: rename defines using a "2" infix ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 158f7585bfcea4aae0ad4128d032a80fec550df1 upstream.

Adding support for Cinterion device MV31 with Qualcomm
new baseline. Use different PIDs to separate it from
previous base line products.
All interfaces settings keep same as previous.

Below is test evidence:
T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b8 Rev=04.14
S:  Manufacturer=Cinterion
S:  Product=Cinterion PID 0x00B8 USB Mobile Broadband
S:  SerialNumber=90418e79
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b9 Rev=04.14
S:  Manufacturer=Cinterion
S:  Product=Cinterion PID 0x00B9 USB Mobile Broadband
S:  SerialNumber=90418e79
C:  #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option

For PID 00b8, interface 3 is GNSS port which don't use serial driver.

Signed-off-by: Slark Xiao &lt;slark_xiao@163.com&gt;
Link: https://lore.kernel.org/r/20220601034740.5438-1-slark_xiao@163.com
[ johan: rename defines using a "2" infix ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc2: gadget: don't reset gadget's driver-&gt;bus</title>
<updated>2022-06-14T14:52:40+00:00</updated>
<author>
<name>Marek Szyprowski</name>
<email>m.szyprowski@samsung.com</email>
</author>
<published>2022-05-05T10:46:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5127c0f365265bb69cd776ad6e4b872c309f3fa8'/>
<id>5127c0f365265bb69cd776ad6e4b872c309f3fa8</id>
<content type='text'>
[ Upstream commit 3120aac6d0ecd9accf56894aeac0e265f74d3d5a ]

UDC driver should not touch gadget's driver internals, especially it
should not reset driver-&gt;bus. This wasn't harmful so far, but since
commit fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") gadget
subsystem got it's own bus and messing with -&gt;bus triggers the
following NULL pointer dereference:

dwc2 12480000.hsotg: bound driver g_ether
8&lt;--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 00000000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in: ...
CPU: 0 PID: 620 Comm: modprobe Not tainted 5.18.0-rc5-next-20220504 #11862
Hardware name: Samsung Exynos (Flattened Device Tree)
PC is at module_add_driver+0x44/0xe8
LR is at sysfs_do_create_link_sd+0x84/0xe0
...
Process modprobe (pid: 620, stack limit = 0x(ptrval))
...
 module_add_driver from bus_add_driver+0xf4/0x1e4
 bus_add_driver from driver_register+0x78/0x10c
 driver_register from usb_gadget_register_driver_owner+0x40/0xb4
 usb_gadget_register_driver_owner from do_one_initcall+0x44/0x1e0
 do_one_initcall from do_init_module+0x44/0x1c8
 do_init_module from load_module+0x19b8/0x1b9c
 load_module from sys_finit_module+0xdc/0xfc
 sys_finit_module from ret_fast_syscall+0x0/0x54
Exception stack(0xf1771fa8 to 0xf1771ff0)
...
dwc2 12480000.hsotg: new device is high-speed
---[ end trace 0000000000000000 ]---

Fix this by removing driver-&gt;bus entry reset.

Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Link: https://lore.kernel.org/r/20220505104618.22729-1-m.szyprowski@samsung.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 3120aac6d0ecd9accf56894aeac0e265f74d3d5a ]

UDC driver should not touch gadget's driver internals, especially it
should not reset driver-&gt;bus. This wasn't harmful so far, but since
commit fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") gadget
subsystem got it's own bus and messing with -&gt;bus triggers the
following NULL pointer dereference:

dwc2 12480000.hsotg: bound driver g_ether
8&lt;--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 00000000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in: ...
CPU: 0 PID: 620 Comm: modprobe Not tainted 5.18.0-rc5-next-20220504 #11862
Hardware name: Samsung Exynos (Flattened Device Tree)
PC is at module_add_driver+0x44/0xe8
LR is at sysfs_do_create_link_sd+0x84/0xe0
...
Process modprobe (pid: 620, stack limit = 0x(ptrval))
...
 module_add_driver from bus_add_driver+0xf4/0x1e4
 bus_add_driver from driver_register+0x78/0x10c
 driver_register from usb_gadget_register_driver_owner+0x40/0xb4
 usb_gadget_register_driver_owner from do_one_initcall+0x44/0x1e0
 do_one_initcall from do_init_module+0x44/0x1c8
 do_init_module from load_module+0x19b8/0x1b9c
 load_module from sys_finit_module+0xdc/0xfc
 sys_finit_module from ret_fast_syscall+0x0/0x54
Exception stack(0xf1771fa8 to 0xf1771ff0)
...
dwc2 12480000.hsotg: new device is high-speed
---[ end trace 0000000000000000 ]---

Fix this by removing driver-&gt;bus entry reset.

Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Link: https://lore.kernel.org/r/20220505104618.22729-1-m.szyprowski@samsung.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: hcd-pci: Fully suspend across freeze/thaw cycle</title>
<updated>2022-06-14T14:52:40+00:00</updated>
<author>
<name>Evan Green</name>
<email>evgreen@chromium.org</email>
</author>
<published>2022-04-21T17:39:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6cade0a0b76f116ea0733dc62251376cf9d14984'/>
<id>6cade0a0b76f116ea0733dc62251376cf9d14984</id>
<content type='text'>
[ Upstream commit 63acaa8e9c65dc34dc249440216f8e977f5d2748 ]

The documentation for the freeze() method says that it "should quiesce
the device so that it doesn't generate IRQs or DMA". The unspoken
consequence of not doing this is that MSIs aimed at non-boot CPUs may
get fully lost if they're sent during the period where the target CPU is
offline.

The current callbacks for USB HCD do not fully quiesce interrupts,
specifically on XHCI. Change to use the full suspend/resume flow for
freeze/thaw to ensure interrupts are fully quiesced. This fixes issues
where USB devices fail to thaw during hibernation because XHCI misses
its interrupt and cannot recover.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Evan Green &lt;evgreen@chromium.org&gt;
Link: https://lore.kernel.org/r/20220421103751.v3.2.I8226c7fdae88329ef70957b96a39b346c69a914e@changeid
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 63acaa8e9c65dc34dc249440216f8e977f5d2748 ]

The documentation for the freeze() method says that it "should quiesce
the device so that it doesn't generate IRQs or DMA". The unspoken
consequence of not doing this is that MSIs aimed at non-boot CPUs may
get fully lost if they're sent during the period where the target CPU is
offline.

The current callbacks for USB HCD do not fully quiesce interrupts,
specifically on XHCI. Change to use the full suspend/resume flow for
freeze/thaw to ensure interrupts are fully quiesced. This fixes issues
where USB devices fail to thaw during hibernation because XHCI misses
its interrupt and cannot recover.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Evan Green &lt;evgreen@chromium.org&gt;
Link: https://lore.kernel.org/r/20220421103751.v3.2.I8226c7fdae88329ef70957b96a39b346c69a914e@changeid
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drivers: usb: host: Fix deadlock in oxu_bus_suspend()</title>
<updated>2022-06-14T14:52:40+00:00</updated>
<author>
<name>Duoming Zhou</name>
<email>duoming@zju.edu.cn</email>
</author>
<published>2022-04-17T12:03:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=9b58d255f27b0ed6a2e43208960864d67579db58'/>
<id>9b58d255f27b0ed6a2e43208960864d67579db58</id>
<content type='text'>
[ Upstream commit 4d378f2ae58138d4c55684e1d274e7dd94aa6524 ]

There is a deadlock in oxu_bus_suspend(), which is shown below:

   (Thread 1)              |      (Thread 2)
                           | timer_action()
oxu_bus_suspend()          |  mod_timer()
 spin_lock_irq() //(1)     |  (wait a time)
 ...                       | oxu_watchdog()
 del_timer_sync()          |  spin_lock_irq() //(2)
 (wait timer to stop)      |  ...

We hold oxu-&gt;lock in position (1) of thread 1, and use
del_timer_sync() to wait timer to stop, but timer handler
also need oxu-&gt;lock in position (2) of thread 2. As a result,
oxu_bus_suspend() will block forever.

This patch extracts del_timer_sync() from the protection of
spin_lock_irq(), which could let timer handler to obtain
the needed lock.

Signed-off-by: Duoming Zhou &lt;duoming@zju.edu.cn&gt;
Link: https://lore.kernel.org/r/20220417120305.64577-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 4d378f2ae58138d4c55684e1d274e7dd94aa6524 ]

There is a deadlock in oxu_bus_suspend(), which is shown below:

   (Thread 1)              |      (Thread 2)
                           | timer_action()
oxu_bus_suspend()          |  mod_timer()
 spin_lock_irq() //(1)     |  (wait a time)
 ...                       | oxu_watchdog()
 del_timer_sync()          |  spin_lock_irq() //(2)
 (wait timer to stop)      |  ...

We hold oxu-&gt;lock in position (1) of thread 1, and use
del_timer_sync() to wait timer to stop, but timer handler
also need oxu-&gt;lock in position (2) of thread 2. As a result,
oxu_bus_suspend() will block forever.

This patch extracts del_timer_sync() from the protection of
spin_lock_irq(), which could let timer handler to obtain
the needed lock.

Signed-off-by: Duoming Zhou &lt;duoming@zju.edu.cn&gt;
Link: https://lore.kernel.org/r/20220417120305.64577-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: host: isp116x: check return value after calling platform_get_resource()</title>
<updated>2022-06-14T14:52:39+00:00</updated>
<author>
<name>Zhen Ni</name>
<email>nizhen@uniontech.com</email>
</author>
<published>2022-03-02T03:37:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=804de302ada3544699c5f48c5314b249af76faa3'/>
<id>804de302ada3544699c5f48c5314b249af76faa3</id>
<content type='text'>
[ Upstream commit 134a3408c2d3f7e23eb0e4556e0a2d9f36c2614e ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Zhen Ni &lt;nizhen@uniontech.com&gt;
Link: https://lore.kernel.org/r/20220302033716.31272-1-nizhen@uniontech.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 134a3408c2d3f7e23eb0e4556e0a2d9f36c2614e ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Zhen Ni &lt;nizhen@uniontech.com&gt;
Link: https://lore.kernel.org/r/20220302033716.31272-1-nizhen@uniontech.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: storage: karma: fix rio_karma_init return</title>
<updated>2022-06-14T14:52:37+00:00</updated>
<author>
<name>Lin Ma</name>
<email>linma@zju.edu.cn</email>
</author>
<published>2022-04-12T14:43:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1a46a4a13f3d6dec09aee9641bc0af0e4d73a6af'/>
<id>1a46a4a13f3d6dec09aee9641bc0af0e4d73a6af</id>
<content type='text'>
[ Upstream commit b92ffb1eddd9a66a90defc556dcbf65a43c196c7 ]

The function rio_karam_init() should return -ENOMEM instead of
value 0 (USB_STOR_TRANSPORT_GOOD) when allocation fails.

Similarly, it should return -EIO when rio_karma_send_command() fails.

Fixes: dfe0d3ba20e8 ("USB Storage: add rio karma eject support")
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Lin Ma &lt;linma@zju.edu.cn&gt;
Link: https://lore.kernel.org/r/20220412144359.28447-1-linma@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit b92ffb1eddd9a66a90defc556dcbf65a43c196c7 ]

The function rio_karam_init() should return -ENOMEM instead of
value 0 (USB_STOR_TRANSPORT_GOOD) when allocation fails.

Similarly, it should return -EIO when rio_karma_send_command() fails.

Fixes: dfe0d3ba20e8 ("USB Storage: add rio karma eject support")
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Lin Ma &lt;linma@zju.edu.cn&gt;
Link: https://lore.kernel.org/r/20220412144359.28447-1-linma@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
