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ALSA: msnd: check request_region() return value

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request_region() may fail, if so return -EBUSY.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Kulikov Vasiliy 2010-07-29 14:45:24 +04:00 committed by Takashi Iwai
parent ec9d04b2a8
commit fa95a6471f
1 changed files with 4 additions and 1 deletions
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5
sound/isa/msnd/msnd_pinnacle.c
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@ -549,7 +549,10 @@ static int __devinit snd_msnd_attach(struct snd_card *card)
printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq); printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq);
return err; return err;
} }
request_region(chip->io, DSP_NUMIO, card->shortname); if (request_region(chip->io, DSP_NUMIO, card->shortname) == NULL) {
free_irq(chip->irq, chip);
return -EBUSY;
}
if (!request_mem_region(chip->base, BUFFSIZE, card->shortname)) { if (!request_mem_region(chip->base, BUFFSIZE, card->shortname)) {
printk(KERN_ERR LOGNAME printk(KERN_ERR LOGNAME