From fa95a6471ffaa6f40d71f44fc4d4636ee17280f5 Mon Sep 17 00:00:00 2001 From: Kulikov Vasiliy Date: Thu, 29 Jul 2010 14:45:24 +0400 Subject: ALSA: msnd: check request_region() return value request_region() may fail, if so return -EBUSY. Signed-off-by: Kulikov Vasiliy Signed-off-by: Takashi Iwai --- sound/isa/msnd/msnd_pinnacle.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sound/isa/msnd') diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c index 60b6abd71612..5f3e68401f90 100644 --- a/sound/isa/msnd/msnd_pinnacle.c +++ b/sound/isa/msnd/msnd_pinnacle.c @@ -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); 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)) { printk(KERN_ERR LOGNAME -- cgit v1.2.2