[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/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 5ccd338a9dc9..2721e4c8184a 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -302,6 +302,10 @@ static int fsl_i2c_probe(struct platform_device *pdev)
         }
 
         i2c->irq = platform_get_irq(pdev, 0);
+        if (i2c->irq < 0) {
+                result = -ENXIO;
+                goto fail_get_irq;
+        }
         i2c->flags = pdata->device_flags;
         init_waitqueue_head(&i2c->queue);
 
@@ -340,6 +344,7 @@ static int fsl_i2c_probe(struct platform_device *pdev)
       fail_irq:
         iounmap(i2c->base);
       fail_map:
+      fail_get_irq:
         kfree(i2c);
         return result;
 };