linux-stable/sound/core
Takashi Iwai 88c54cdf61 ALSA: core: Fix unexpected error at replacing user TLV
When user tries to replace the user-defined control TLV, the kernel
checks the change of its content via memcmp().  The problem is that
the kernel passes the return value from memcmp() as is.  memcmp()
gives a non-zero negative value depending on the comparison result,
and this shall be recognized as an error code.

The patch covers that corner-case, return 1 properly for the changed
TLV.

Fixes: 8aa9b586e4 ("[ALSA] Control API - more robust TLV implementation")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-22 15:43:40 +02:00
..
oss
seq
compress_offload.c
control.c ALSA: core: Fix unexpected error at replacing user TLV 2017-08-22 15:43:40 +02:00
control_compat.c
ctljack.c
device.c
hrtimer.c
hwdep.c
hwdep_compat.c
info.c
info_oss.c
init.c
isadma.c
jack.c
Kconfig
Makefile
memalloc.c
memory.c
misc.c
pcm.c
pcm_compat.c
pcm_dmaengine.c
pcm_drm_eld.c
pcm_iec958.c
pcm_lib.c
pcm_local.h
pcm_memory.c
pcm_misc.c
pcm_native.c
pcm_param_trace.h
pcm_timer.c
pcm_trace.h
rawmidi.c
rawmidi_compat.c
seq_device.c
sgbuf.c
sound.c
sound_oss.c
timer.c
timer_compat.c
vmaster.c