openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ALSA: firewire-lib: fix the context to call snd_pcm_stop_xrun() 

In the workqueue to queue wake-up event, isochronous context is not
processed, thus it's useless to check context for the workqueue to switch
status of runtime for PCM substream to XRUN. On the other hand, in
software IRQ context of 1394 OHCI, it's needed.

This commit fixes the bug introduced when tasklet was replaced with
workqueue.

Cc: <stable@vger.kernel.org>
Fixes: 2b3d2987d8 ("ALSA: firewire: Replace tasklet with work")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210605091054.68866-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2021-06-05 18:10:54 +09:00 committed by Takashi Iwai
parent dfb06401b4
commit 9981b20a5e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sound/firewire/amdtp-stream.c
View File

@ -804,7 +804,7 @@ static void generate_pkt_descs(struct amdtp_stream *s, struct pkt_desc *descs,
static inline void cancel_stream(struct amdtp_stream *s)
{
s->packet_index = -1;
if (current_work() == &s->period_work)
if (in_interrupt())
amdtp_stream_pcm_abort(s);
WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
}