[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, 5 insertions, 0 deletions

diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 32431dcf5d..71f27e955d 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -674,6 +674,11 @@ static int au_ide_probe(struct device *dev)
                 ret = -ENODEV;
                 goto out;
         }
+        if (ahwif->irq < 0) {
+                pr_debug("%s %d: no IRQ\n", DRV_NAME, pdev->id);
+                ret = -ENODEV;
+                goto out;
+        }
 
         if (!request_mem_region (res->start, res->end-res->start, pdev->name)) {
                 pr_debug("%s: request_mem_region failed\n", DRV_NAME);