linux.git/drivers/staging, branch v4.13-rc2

staging: rtl8188eu: add TL-WN722N v2 support

2017-07-18T07:04:22+00:00

Add support for USB Device TP-Link TL-WN722N v2.
VendorID: 0x2357, ProductID: 0x010c

Signed-off-by: Michael Gugino 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

staging: speakup: safely register and unregister ldisc

2017-07-18T07:03:22+00:00

This patch makes use of functions added in the previous patch. It
registers ldisc during init of main speakup module and unregisters it
during exit. It also removes the code to register ldisc every time a
synth module is loaded. This way we only register the ldisc once when
main speakup module is loaded. Since main speakup module is required by
all synth modules, it is only unloaded when all synths have been
unloaded. Therefore we unregister the ldisc once, when all speakup
related references to the ldisc have returned. In unlikely scenario of
something outside speakup using the ldisc, the ldisc refcount check in
tty_unregister_ldisc will ensure that it is not unregistered while in
use.

The function to register ldisc doesn't cause speakup init function to
fail. That is different from current behaviour where failure to register
ldisc results in failure to load the specific synth module. This is
because speakup module is also required by those synths which don't use
tty and ldisc. We don't want to prevent those modules from loading when
ldisc fails to register. The synth modules will correctly fail when
trying to set N_SPEAKUP to tty, if ldisc registrationi had failed.

Signed-off-by: Okash Khawaja 
Signed-off-by: Greg Kroah-Hartman

staging: speakup: add functions to register and unregister ldisc

2017-07-18T07:03:21+00:00

This patch adds the above two functions and makes them available to
main.c where they will be called during init and exit functions of
main speakup module. Following patch will make use of them.

Signed-off-by: Okash Khawaja 
Signed-off-by: Greg Kroah-Hartman

staging: speakup: safely close tty

2017-07-18T07:03:21+00:00

Speakup opens tty using tty_open_by_driver. When closing, it calls
tty_ldisc_release but doesn't close and remove the tty itself. As a
result, that tty cannot be opened from user space. This patch calls
tty_release_struct which ensures that tty is safely removed and freed
up. It also calls tty_ldisc_release, so speakup doesn't need to call it.

Signed-off-by: Okash Khawaja 
Signed-off-by: Greg Kroah-Hartman

staging: sm750fb: avoid conflicting vesafb

2017-07-18T06:53:45+00:00

If vesafb is enabled in the config then /dev/fb0 is created by vesa
and this sm750 driver gets fb1, fb2. But we need to be fb0 and fb1 to
effectively work with xorg.
So if it has been alloted fb1, then try to remove the other fb0.

In the previous send, why #ifdef is used was asked.
https://lkml.org/lkml/2017/6/25/57

Answered at: https://lkml.org/lkml/2017/6/25/69
Also pasting here for reference.

'Did a quick research into "why".
The patch d8801e4df91e ("x86/PCI: Set IORESOURCE_ROM_SHADOW only for the
default VGA device") has started setting IORESOURCE_ROM_SHADOW in flags
for a default VGA device and that is being done only for x86.
And so, we will need that #ifdef to check IORESOURCE_ROM_SHADOW as that
needs to be checked only for a x86 and not for other arch.'

Cc:  # v4.4+
Signed-off-by: Teddy Wang 
Signed-off-by: Sudip Mukherjee 
Signed-off-by: Greg Kroah-Hartman

staging: lustre: ko2iblnd: check copy_from_iter/copy_to_iter return code

2017-07-18T06:36:20+00:00

We now get a helpful warning for code that calls copy_{from,to}_iter
without checking the return value, introduced by commit aa28de275a24
("iov_iter/hardening: move object size checks to inlined part").

drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c: In function 'kiblnd_send':
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:1643:2: error: ignoring return value of 'copy_from_iter', declared with attribute warn_unused_result [-Werror=unused-result]
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c: In function 'kiblnd_recv':
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:1744:3: error: ignoring return value of 'copy_to_iter', declared with attribute warn_unused_result [-Werror=unused-result]

In case we get short copies here, we may get incorrect behavior.
I've added failure handling for both rx and tx now, returning
-EFAULT as expected.

Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann 
Signed-off-by: James Simmons 
Signed-off-by: Greg Kroah-Hartman

staging: vboxvideo: Add vboxvideo to drivers/staging

2017-07-17T11:04:07+00:00

This commit adds the vboxvideo drm/kms driver for the virtual graphics
card used in Virtual Box virtual machines to drivers/staging.

Why drivers/staging? This driver is already being patched into the kernel
by several distros, thus it is good to get this driver upstream soon, so
that work on the driver can be easily shared.

At the same time we want to take our time to get this driver properly
cleaned up (mainly converted to the new atomic modesetting APIs) before
submitting it as a normal driver under drivers/gpu/drm, putting this
driver in staging for now allows both.

Note this driver has already been significantly cleaned up, when I started
working on this the files under /usr/src/vboxguest/vboxvideo as installed
by Virtual Box 5.1.18 Guest Additions had a total linecount of 52681
lines. The version in this commit has 4874 lines.

Cc: vbox-dev@virtualbox.org
Cc: Michael Thayer 
Signed-off-by: Hans de Goede 
Signed-off-by: Michael Thayer 
Acked-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

staging: sm750fb: fixed a assignment typo

2017-07-16T07:13:53+00:00

fixed a typo issue in get_mxclk_freq() function.

the original code using PLL_CTRL_M_SHIFT for shifting to set N flag.
which is not right, it should be PLL_CTRL_N_SHIFT.

both PLL_CTRL_M_SHIFT and PLL_CTRL_N_SHIFT
  defined in drivers/staging/sm750fb/ddk750_reg.h

Signed-off-by: Lynn Lei 
Signed-off-by: Greg Kroah-Hartman

staging: rtl8188eu: memory leak in rtw_free_cmd_obj()

2017-07-16T07:13:53+00:00

We were fixing checkpatch.pl warnings and accidentally reversed this
condition.

Fixes: 5b29aaaa1e3c ("staging: rtl8188eu: removes comparison to null")
Signed-off-by: Dan Carpenter 
Signed-off-by: Greg Kroah-Hartman

staging: vchiq_arm: fix error codes in probe

2017-07-16T07:13:53+00:00

If vchiq_debugfs_init() fails, then we accidentally return a valid
pointer casted to int on error.  This code is simpler if we get rid of
the "ptr_err" variable and just use "err" throughout.

Signed-off-by: Dan Carpenter 
Signed-off-by: Greg Kroah-Hartman