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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2008-05-09 13:43:55 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-05-13 14:47:43 +0200 |
| commit | 3a3bd960a0b7bb26604b1270a8b4cafdc5883040 (patch) | |
| tree | 6a276f49b81fc70158e9430706294556a93ab67c /sound | |
| parent | bf91141d3565b35fb2a44364bfb874a3be3c12b6 (diff) | |
| download | lwn-3a3bd960a0b7bb26604b1270a8b4cafdc5883040.tar.gz lwn-3a3bd960a0b7bb26604b1270a8b4cafdc5883040.zip | |
[ALSA] soc - fsl_ssi.c fix "BUG: scheduling while atomic"
This patch fixes following bug caught with PREEMPT enabled:
root@b1:~# cat /dev/dsp > /dev/null
BUG: scheduling while atomic: cat/965/0x00000003
Call Trace:
[df165ce0] [c0008e84] show_stack+0x4c/0x1ac (unreliable)
[df165d20] [c001c18c] __schedule_bug+0x64/0x78
[df165d30] [c02b3344] schedule+0x2d8/0x334
[df165d70] [c02b3674] schedule_timeout+0x64/0xe4
[df165db0] [c002c05c] msleep+0x1c/0x34
[df165dc0] [c01f2fe0] fsl_ssi_trigger+0x130/0x144
[df165dd0] [c01ece54] soc_pcm_trigger+0x94/0xb8
[df165df0] [c01da764] snd_pcm_do_start+0x48/0x60
[df165e00] [c01da630] snd_pcm_action_single+0x4c/0xb4
[df165e20] [c01e0f50] snd_pcm_lib_read1+0x2a0/0x2d4
[df165e70] [c01ec274] snd_pcm_oss_read3+0xf0/0x13c
[df165eb0] [c01ec2e4] snd_pcm_oss_read2+0x24/0x4c
[df165ec0] [c01ec4ac] snd_pcm_oss_read+0x1a0/0x1f0
[df165ef0] [c0076478] vfs_read+0xb4/0x108
[df165f10] [c00768cc] sys_read+0x4c/0x90
[df165f40] [c00117a4] ret_from_syscall+0x0/0x38
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index b2a11b0d2e4c..f588545698f3 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -416,7 +416,7 @@ static int fsl_ssi_trigger(struct snd_pcm_substream *substream, int cmd) * to put data into its FIFO. Without it, ALSA starts * to complain about overruns. */ - msleep(1); + mdelay(1); } break; |