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Clemens Ladisch b406e6103b ALSA: pcm: fix delta calculation at boundary wraparound ... In the cleanup of the hw_ptr update functions in 2.6.33, the calculation of the delta value was changed to use the modulo operator to protect against a negative difference due to the pointer wrapping around at the boundary. However, the ptr variables are unsigned, so a negative difference would result in the two complement's value which has no relation to the actual difference relative to the boundary; the result is typically some value near LONG_MAX-boundary. Furthermore, even if the modulo operation would be done with signed types, the result of a negative dividend could be negative. The invalid delta value is then caught by the following checks, but this means that the pointer update is ignored. To fix this, use a range check as in the other pointer calculations. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>		15 years ago
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oss	ALSA: core - Define llseek fops	15 years ago
seq	ALSA: core - Define llseek fops	15 years ago
Kconfig	ALSA: sound/core/pcm_timer.c: use lib/gcd.c	15 years ago
Makefile	…
control.c	ALSA: core - Define llseek fops	15 years ago
control_compat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
device.c	…
hrtimer.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
hwdep.c	…
hwdep_compat.c	…
info.c	ALSA: info - Implement common llseek for binary mode	15 years ago
info_oss.c	…
init.c	…
isadma.c	…
jack.c	Merge branch 'topic/jack' into for-linus	15 years ago
memalloc.c	…
memory.c	…
misc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
pcm.c	PM QOS update	15 years ago
pcm_compat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
pcm_lib.c	ALSA: pcm: fix delta calculation at boundary wraparound	15 years ago
pcm_memory.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
pcm_misc.c	…
pcm_native.c	ALSA: pcm: fix the fix of the runtime->boundary calculation	15 years ago
pcm_timer.c	ALSA: sound/core/pcm_timer.c: use lib/gcd.c	15 years ago
rawmidi.c	ALSA: core - Define llseek fops	15 years ago
rawmidi_compat.c	…
rtctimer.c	…
sgbuf.c	…
sound.c	ALSA: Remove BKL from open multiplexer	15 years ago
sound_oss.c	ALSA: Remove warning message for invalid OSS minor ranges	15 years ago
timer.c	Merge branch 'topic/core-cleanup' into for-linus	15 years ago
timer_compat.c	…
vmaster.c	…