[PATCH] handle errors returned by platform_get_irq*()

platform_get_irq*() now returns on -ENXIO when the resource cannot be
found.  Ensure all users of platform_get_irq*() handle this error
appropriately.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/char/watchdog/mpcore_wdt.c b/drivers/char/watchdog/mpcore_wdt.c
index b4d843489881..2c2c51773200 100644
--- a/drivers/char/watchdog/mpcore_wdt.c
+++ b/drivers/char/watchdog/mpcore_wdt.c
@@ -338,6 +338,10 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
 
         wdt->dev = &dev->dev;
         wdt->irq = platform_get_irq(dev, 0);
+        if (wdt->irq < 0) {
+                ret = -ENXIO;
+                goto err_free;
+        }
         wdt->base = ioremap(res->start, res->end - res->start + 1);
         if (!wdt->base) {
                 ret = -ENOMEM;