diff --git a/[refs] b/[refs]
index 7c5c731c951c..a756560971b7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 727a53bd535fe3bde644ac346db27456ad964083
+refs/heads/master: a3e713b5fdd0e54c2e3c8909ccde2a98839e3a52
diff --git a/trunk/fs/buffer.c b/trunk/fs/buffer.c
index 75cac9ada026..35fa34977e81 100644
--- a/trunk/fs/buffer.c
+++ b/trunk/fs/buffer.c
@@ -1478,8 +1478,10 @@ EXPORT_SYMBOL(__getblk);
 void __breadahead(struct block_device *bdev, sector_t block, int size)
 {
 	struct buffer_head *bh = __getblk(bdev, block, size);
-	ll_rw_block(READA, 1, &bh);
-	brelse(bh);
+	if (likely(bh)) {
+		ll_rw_block(READA, 1, &bh);
+		brelse(bh);
+	}
 }
 EXPORT_SYMBOL(__breadahead);
 
@@ -1497,7 +1499,7 @@ __bread(struct block_device *bdev, sector_t block, int size)
 {
 	struct buffer_head *bh = __getblk(bdev, block, size);
 
-	if (!buffer_uptodate(bh))
+	if (likely(bh) && !buffer_uptodate(bh))
 		bh = __bread_slow(bh);
 	return bh;
 }