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ASoC: fsl_ssi: let check zero instead of check NO_IRQ 

NO_IRQ may be defined as '(unsigned int) -1' in some architectures
(arm, sh ...), and either may not be defined in some architectures
which can enable SND_SOC_FSL_SSI (e.g. allmodconfig for arc).

When irq_of_parse_and_map() fails, it will always return 0, so need
check zero instead of NO_IRQ, or will cause compiling issue or run
time bug in some architectures.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Chen Gang 2013-09-23 11:36:21 +08:00 committed by Mark Brown
parent 64d2307c3b
commit d60336e2f1
1 changed files with 1 additions and 1 deletions
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2
sound/soc/fsl/fsl_ssi.c
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@ -929,7 +929,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
ssi_private->ssi_phys = res.start;
ssi_private->irq = irq_of_parse_and_map(np, 0);
if (ssi_private->irq == NO_IRQ) {
if (!ssi_private->irq) {
dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
return -ENXIO;
}