diff options
| author | Takashi Iwai <tiwai@suse.de> | 2011-03-18 07:31:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-23 13:04:00 -0700 |
| commit | 74d5036bb343ce72af45f8bdcbd5dd87459d1216 (patch) | |
| tree | 661f656c81003c8e67f3b920aa2e46facd222c14 /lib/hweight.c | |
| parent | f97aa1f43ed9e241a05f7e4d2e4afedf97356f7a (diff) | |
ALSA: aloop - Fix possible IRQ lock inversion
commit 98d21df431ad55281e1abf780f8d51e3391900b2 upstream.
loopback_pos_update() can be called in the timer callback, thus the lock
held should be irq-safe. Otherwise you'll get AB/BA deadlock together
with substream->self_group.lock.
Reported-and-tested-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/hweight.c')
0 files changed, 0 insertions, 0 deletions