From e0ea7ce8a2ff1f48b0b2aba9947fad22ebe7a46f Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Mon, 28 Feb 2005 19:47:58 -0800
Subject: [PATCH] [PATCH] genhd: NULL checking fix

Avoid a possible null-pointer deref.

Found by the Coverity tool

Signed-off-by: Alexander Nyberg <alexn@dsv.su.se>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/block/genhd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c
index aee126315447..80da35816f5e 100644
--- a/drivers/block/genhd.c
+++ b/drivers/block/genhd.c
@@ -660,9 +660,10 @@ int invalidate_partition(struct gendisk *disk, int index)
 {
 	int res = 0;
 	struct block_device *bdev = bdget_disk(disk, index);
-	if (bdev)
+	if (bdev) {
 		res = __invalidate_device(bdev, 1);
-	bdput(bdev);
+		bdput(bdev);
+	}
 	return res;
 }
 
-- 
2.39.5