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| author | Jurgen Kramer <gtmkramer@xs4all.nl> | 2012-12-07 10:26:43 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-12-07 15:03:34 +0100 |
| commit | 9621055fbbb190264cb6a8182b70e3f0f917d770 (patch) | |
| tree | 111eb2b3bee0f31e0d599bf84608e72687532d48 /sound/usb | |
| parent | ALSA: DocBook: Remove the description of __dev* (diff) | |
| download | linux-9621055fbbb190264cb6a8182b70e3f0f917d770.tar.xz linux-9621055fbbb190264cb6a8182b70e3f0f917d770.zip | |
ALSA: usb6fire: prevent driver panic state when stopping
The patch below prevents the 6fire usb driver going into panic state
when stopping playing. On some systems the urb in handler
(usb6fire_pcm_in_urb_handler) is being called while urbs are being
killed off, this causes the driver to set panic state and can result in
the kernel warning 'URB %p submitted while active'.
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/6fire/pcm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c index cabedb416fc4..e2ca12fe92e9 100644 --- a/sound/usb/6fire/pcm.c +++ b/sound/usb/6fire/pcm.c @@ -135,6 +135,9 @@ static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt) struct control_runtime *ctrl_rt = rt->chip->control; if (rt->stream_state != STREAM_DISABLED) { + + rt->stream_state = STREAM_STOPPING; + for (i = 0; i < PCM_N_URBS; i++) { usb_kill_urb(&rt->in_urbs[i].instance); usb_kill_urb(&rt->out_urbs[i].instance); |