[PATCH] reiserfs: missing kmalloc failure check

According to http://bugzilla.kernel.org/show_bug.cgi?id=5778
fs/reiserfs/file.c is missing this check.

Signed-off-by: Diego Calleja <diegocg@gmail.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index ad6fa964b0e7..1cad5d066a5c 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -192,6 +192,8 @@ static int reiserfs_allocate_blocks_for_region(struct reiserfs_transaction_handl
 
         allocated_blocks = kmalloc((blocks_to_allocate + will_prealloc) *
                                    sizeof(b_blocknr_t), GFP_NOFS);
+        if (!allocated_blocks)
+                return -ENOMEM;
 
         /* First we compose a key to point at the writing position, we want to do
            that outside of any locking region. */