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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-01-06 14:42:11 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:23 -0800 |
| commit | 2fac6674ddf3164da42a76d62f8912073d629a30 (patch) | |
| tree | ffc7b69bbbe065ebe1e75be601c866467252f550 /drivers/rtc/rtc-sh.c | |
| parent | d4afc76c0b59a37113e184004f8a9989cfc1ddd3 (diff) | |
| download | linux-2fac6674ddf3164da42a76d62f8912073d629a30.tar.gz linux-2fac6674ddf3164da42a76d62f8912073d629a30.tar.bz2 linux-2fac6674ddf3164da42a76d62f8912073d629a30.zip | |
rtc: bunch of drivers: fix 'no irq' case handing
This patch fixes a bunch of irq checking misuses. Most drivers were
getting irq via platform_get_irq(), which returns -ENXIO or r->start.
rtc-cmos.c is special. It is using PNP and platform bindings. Hopefully
nobody is using PNP IRQ 0 for RTC. So the changes should be safe.
rtc-sh.c is using platform_get_irq, but was storing a result into an
unsigned type, then was checking for < 0. This is fixed now.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-sh.c')
| -rw-r--r-- | drivers/rtc/rtc-sh.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index aaf9d6a337cc..5ed66acf8ca5 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -89,7 +89,9 @@ struct sh_rtc { void __iomem *regbase; unsigned long regsize; struct resource *res; - unsigned int alarm_irq, periodic_irq, carry_irq; + int alarm_irq; + int periodic_irq; + int carry_irq; struct rtc_device *rtc_dev; spinlock_t lock; unsigned long capabilities; /* See asm-sh/rtc.h for cap bits */ @@ -578,7 +580,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) /* get periodic/carry/alarm irqs */ ret = platform_get_irq(pdev, 0); - if (unlikely(ret < 0)) { + if (unlikely(ret <= 0)) { ret = -ENOENT; dev_err(&pdev->dev, "No IRQ for period\n"); goto err_badres; @@ -586,7 +588,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) rtc->periodic_irq = ret; ret = platform_get_irq(pdev, 1); - if (unlikely(ret < 0)) { + if (unlikely(ret <= 0)) { ret = -ENOENT; dev_err(&pdev->dev, "No IRQ for carry\n"); goto err_badres; @@ -594,7 +596,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) rtc->carry_irq = ret; ret = platform_get_irq(pdev, 2); - if (unlikely(ret < 0)) { + if (unlikely(ret <= 0)) { ret = -ENOENT; dev_err(&pdev->dev, "No IRQ for alarm\n"); goto err_badres; |