Update of /cvsroot/alsa/alsa-kernel/isa/cs423x
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv22069
Modified Files:
cs4231_lib.c
Log Message:
checks the PCM substream pointers to fix oops/panic in the interrupt
handler.
Index: cs4231_lib.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/isa/cs423x/cs4231_lib.c,v
retrieving revision 1.39
retrieving revision 1.40
diff -u -r1.39 -r1.40
--- cs4231_lib.c 8 Apr 2004 17:10:08 -0000 1.39
+++ cs4231_lib.c 1 May 2004 09:01:11 -0000 1.40
@@ -979,19 +979,26 @@
}
if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
if (status & CS4231_PLAYBACK_IRQ) {
- if (chip->mode & CS4231_MODE_PLAY)
- snd_pcm_period_elapsed(chip->playback_substream);
+ if (chip->mode & CS4231_MODE_PLAY) {
+ if (chip->playback_substream)
+
snd_pcm_period_elapsed(chip->playback_substream);
+ }
if (chip->mode & CS4231_MODE_RECORD) {
- snd_cs4231_overrange(chip);
- snd_pcm_period_elapsed(chip->capture_substream);
+ if (chip->capture_substream) {
+ snd_cs4231_overrange(chip);
+
snd_pcm_period_elapsed(chip->capture_substream);
+ }
}
}
} else {
- if (status & CS4231_PLAYBACK_IRQ)
- snd_pcm_period_elapsed(chip->playback_substream);
+ if (status & CS4231_PLAYBACK_IRQ) {
+ if (chip->playback_substream)
+ snd_pcm_period_elapsed(chip->playback_substream);
if (status & CS4231_RECORD_IRQ) {
- snd_cs4231_overrange(chip);
- snd_pcm_period_elapsed(chip->capture_substream);
+ if (chip->capture_substream) {
+ snd_cs4231_overrange(chip);
+ snd_pcm_period_elapsed(chip->capture_substream);
+ }
}
}
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