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Kelly Anderson 12ff414e2e ALSA: pcm: fix infinite loop in snd_pcm_update_hw_ptr0() ... When period interrupts are disabled, snd_pcm_update_hw_ptr0() compares the current time against the time estimated for the current hardware pointer to detect xruns. The somewhat fuzzy threshold in the while loop makes it possible that hdelta becomes negative; the comparison being done with unsigned types then makes the loop go through the entire 263 negative range, and, depending on the value, never reach an unsigned value that is small enough to stop the loop. Doing this with interrupts disabled results in the machine locking up. To prevent this, ensure that the loop condition uses signed types for both operands so that the comparison is correctly done. Many thanks to Kelly Anderson for debugging this. Reported-by: Nix <nix@esperi.org.uk> Reported-by: "Christopher K." <c.krooss@googlemail.com> Reported-and-tested-by: Kelly Anderson <kelly@silka.with-linux.com> Signed-off-by: Kelly Anderson <kelly@silka.with-linux.com> [cl: remove unneeded casts; use a temp variable] Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: 2.6.38 <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>		14 years ago
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oss	ALSA: core: sparse cleanups	14 years ago
seq	sound:core:seq:seq_ports.c Remove one to many n's in a word.	14 years ago
Kconfig	ALSA: sound/core/pcm_timer.c: use lib/gcd.c	15 years ago
Makefile	…
control.c	Merge branch 'topic/misc' into for-linus	14 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	ALSA: core: sparse cleanups	14 years ago
hrtimer.c	ALSA: hrtimer: remove superfluous tasklet invocation	14 years ago
hwdep.c	…
hwdep_compat.c	…
info.c	BKL: remove extraneous #include <smp_lock.h>	14 years ago
info_oss.c	…
init.c	ALSA: Fix yet another race in disconnection	14 years ago
isadma.c	…
jack.c	ALSA: fix one memory leak in sound jack	14 years ago
memalloc.c	ALSA: core: sparse cleanups	14 years ago
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	ALSA: core: sparse cleanups	14 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 infinite loop in snd_pcm_update_hw_ptr0()	14 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	ALSA: core: sparse cleanups	14 years ago
pcm_native.c	ALSA: vmalloc buffers should use normal mmap	14 years ago
pcm_timer.c	ALSA: sound/core/pcm_timer.c: use lib/gcd.c	15 years ago
rawmidi.c	ALSA: rawmidi: fix oops (use after free) when unloading a driver module	14 years ago
rawmidi_compat.c	…
rtctimer.c	…
sgbuf.c	…
sound.c	Merge branch 'topic/workq-update' into topic/misc	14 years ago
sound_oss.c	ALSA: Remove warning message for invalid OSS minor ranges	15 years ago
timer.c	ALSA: sound/core: merge list_del()/list_add_tail() to list_move_tail()	14 years ago
timer_compat.c	…
vmaster.c	ALSA: core: sparse cleanups	14 years ago