[patch 1/1] pata-rb532-cf: platform_get_irq() failure ignored

[akpm@linux-foundation.org]

From: Roel Kluin <roel.kluin@gmail.com>

platform_get_irq() can return -ENXIO, but since 'irq' is an unsigned int,
it does not show when the IRQ resource wasn't found.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/ata/pata_rb532_cf.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff -puN drivers/ata/pata_rb532_cf.c~pata-rb532-cf-platform_get_irq-failure-ignored drivers/ata/pata_rb532_cf.c
--- a/drivers/ata/pata_rb532_cf.c~pata-rb532-cf-platform_get_irq-failure-ignored
+++ a/drivers/ata/pata_rb532_cf.c
@@ -117,11 +117,12 @@ static __devinit int rb532_pata_driver_p
 		return -EINVAL;
 	}
 
-	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
+	ret = platform_get_irq(pdev, 0);
+	if (ret <= 0) {
 		dev_err(&pdev->dev, "no IRQ resource found\n");
 		return -ENOENT;
 	}
+	irq = ret;
 
 	gpio = irq_to_gpio(irq);
 	if (gpio < 0) {
_