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sound: oss: msnd: check request_region() return value 

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 14:45:50 +04:00 committed by Takashi Iwai
parent fa95a6471f
commit 9c29490246
1 changed files with 6 additions and 2 deletions
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8
sound/oss/msnd_pinnacle.c
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@ -1400,9 +1400,13 @@ static int __init attach_multisound(void)
printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq);
return err;
}
request_region(dev.io, dev.numio, dev.name);
if (request_region(dev.io, dev.numio, dev.name) == NULL) {
free_irq(dev.irq, &dev);
return -EBUSY;
}
if ((err = dsp_full_reset()) < 0) {
err = dsp_full_reset();
if (err < 0) {
release_region(dev.io, dev.numio);
free_irq(dev.irq, &dev);
return err;