From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 22 May 2008 21:21:08 +0000 (-0400)
Subject: block: fix compiler warning in genhd.c
X-Git-Tag: v2.6.27-rc1~866^2~46
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6ffeea77ff014f1456fcd0564eac84b34e9535ca;p=karo-tx-linux.git

block: fix compiler warning in genhd.c

Warn if something really bad happens if we can't create this link.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/block/genhd.c b/block/genhd.c
index 24e3fc9095fe..3ccf5c017565 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -183,6 +183,7 @@ static int exact_lock(dev_t devt, void *data)
 void add_disk(struct gendisk *disk)
 {
 	struct backing_dev_info *bdi;
+	int retval;
 
 	disk->flags |= GENHD_FL_UP;
 	blk_register_region(MKDEV(disk->major, disk->first_minor),
@@ -193,7 +194,8 @@ void add_disk(struct gendisk *disk)
 
 	bdi = &disk->queue->backing_dev_info;
 	bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor));
-	sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
+	retval = sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
+	WARN_ON(retval);
 }
 
 EXPORT_SYMBOL(add_disk);