The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct.
Signed-off-by: Arvind Yadav arvind.yadav.cs@gmail.com --- changes in v2 : irq was unsigned. so using signed variable ret. changes in v3 : Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.
sound/soc/nuc900/nuc900-ac97.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c index b6615af..71fce7c 100644 --- a/sound/soc/nuc900/nuc900-ac97.c +++ b/sound/soc/nuc900/nuc900-ac97.c @@ -345,11 +345,10 @@ static int nuc900_ac97_drvprobe(struct platform_device *pdev) goto out; }
- nuc900_audio->irq_num = platform_get_irq(pdev, 0); - if (!nuc900_audio->irq_num) { - ret = -EBUSY; + ret = platform_get_irq(pdev, 0); + if (ret <= 0) goto out; - } + nuc900_audio->irq_num = ret;
nuc900_ac97_data = nuc900_audio;