[PATCH 33/79] block: fix compiler warning in genhd.c

[Greg Kroah-Hartman]

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

Cc: Kay Sievers <kay.sievers@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 block/genhd.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index 24e3fc9..3ccf5c0 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);
-- 
1.5.6.3

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