From 9c29490246ed80975ab8b87bcd4ebe5b87c1c1d6 Mon Sep 17 00:00:00 2001 From: Kulikov Vasiliy Date: Thu, 29 Jul 2010 14:45:50 +0400 Subject: [PATCH] sound: oss: 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/oss/msnd_pinnacle.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c index bfaac5fa13d7..2e48b17667d0 100644 --- a/sound/oss/msnd_pinnacle.c +++ b/sound/oss/msnd_pinnacle.c @@ -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; -- 2.30.2