S3C2410: add error print if we cannot add attribute

Fix the following warning by checking the result of device_create_file and
printing an error but not removing the device (loss of debug registers is
not fatal).

drivers/video/s3c2410fb.c:905: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index 2219ae5..5fea847 100644 (file)
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -972,7 +972,10 @@ static int __init s3c24xxfb_probe(struct platform_device *pdev,
        }
 
        /* create device files */
-       device_create_file(&pdev->dev, &dev_attr_debug);
+       ret = device_create_file(&pdev->dev, &dev_attr_debug);
+       if (ret) {
+               printk(KERN_ERR "failed to add debug attribute\n");
+       }
 
        printk(KERN_INFO "fb%d: %s frame buffer device\n",
                fbinfo->node, fbinfo->fix.id);