aboutsummaryrefslogtreecommitdiff
path: root/sound/isa
diff options
context:
space:
mode:
authorKrzysztof Helt <krzysztof.h1@wp.pl>2009-12-09 20:12:43 +0100
committerTakashi Iwai <tiwai@suse.de>2009-12-10 11:39:48 +0100
commit5f60e496083efb01893a899b6885828330db971f (patch)
treeea21538d0b263f494e2cb1e51cd3333cf30db286 /sound/isa
parent84194883bcf89383ea4230116bb0195af5ec5829 (diff)
downloadlinux-5f60e496083efb01893a899b6885828330db971f.tar.gz
ALSA: opti93x: fix irq releasing if the irq cannot be allocated
Use the chip->irq to check if the irq should be released so the irq is not released if it has not been allocated. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa')
-rw-r--r--sound/isa/opti9xx/opti92x-ad1848.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 8c88401c79bc..d8eac3f28947 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -548,10 +548,13 @@ __skip_mpu:
static irqreturn_t snd_opti93x_interrupt(int irq, void *dev_id)
{
- struct snd_wss *codec = dev_id;
- struct snd_opti9xx *chip = codec->card->private_data;
+ struct snd_opti9xx *chip = dev_id;
+ struct snd_wss *codec = chip->codec;
unsigned char status;
+ if (!codec)
+ return IRQ_HANDLED;
+
status = snd_opti9xx_read(chip, OPTi9XX_MC_REG(11));
if ((status & OPTi93X_IRQ_PLAYBACK) && codec->playback_substream)
snd_pcm_period_elapsed(codec->playback_substream);
@@ -691,10 +694,9 @@ static void snd_card_opti9xx_free(struct snd_card *card)
if (chip) {
#ifdef OPTi93X
- struct snd_wss *codec = chip->codec;
- if (codec && codec->irq > 0) {
- disable_irq(codec->irq);
- free_irq(codec->irq, codec);
+ if (chip->irq > 0) {
+ disable_irq(chip->irq);
+ free_irq(chip->irq, chip);
}
release_and_free_resource(chip->res_mc_indir);
#endif
@@ -759,9 +761,9 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
#endif
#ifdef OPTi93X
error = request_irq(irq, snd_opti93x_interrupt,
- IRQF_DISABLED, DEV_NAME" - WSS", codec);
+ IRQF_DISABLED, DEV_NAME" - WSS", chip);
if (error < 0) {
- snd_printk(KERN_ERR "opti9xx: can't grab IRQ %d\n", chip->irq);
+ snd_printk(KERN_ERR "opti9xx: can't grab IRQ %d\n", irq);
return error;
}
#endif