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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-01-06 14:42:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:23 -0800
commit2fac6674ddf3164da42a76d62f8912073d629a30 (patch)
treeffc7b69bbbe065ebe1e75be601c866467252f550 /drivers/rtc/rtc-twl4030.c
parentd4afc76c0b59a37113e184004f8a9989cfc1ddd3 (diff)
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-twl4030.c')
-rw-r--r--drivers/rtc/rtc-twl4030.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-twl4030.c b/drivers/rtc/rtc-twl4030.c
index 01d8da9afdc8..8ce5f74ee45b 100644
--- a/drivers/rtc/rtc-twl4030.c
+++ b/drivers/rtc/rtc-twl4030.c
@@ -19,6 +19,7 @@
*/
#include <linux/kernel.h>
+#include <linux/errno.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
@@ -415,8 +416,8 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
int irq = platform_get_irq(pdev, 0);
u8 rd_reg;
- if (irq < 0)
- return irq;
+ if (irq <= 0)
+ return -EINVAL;
rtc = rtc_device_register(pdev->name,
&pdev->dev, &twl4030_rtc_ops, THIS_MODULE);