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authorIngo Molnar <mingo@kernel.org>2014-11-16 12:50:25 +0300
committerIngo Molnar <mingo@kernel.org>2014-11-16 12:50:25 +0300
commite9ac5f0fa8549dffe2a15870217a9c2e7cd557ec (patch)
tree863e0e108f7b7ba2dffc7575bbdfc2d454fc2017 /fs/ext4/ialloc.c
parent44dba3d5d6a10685fb15bd1954e62016334825e0 (diff)
parent6e998916dfe327e785e7c2447959b2c1a3ea4930 (diff)
downloadlinux-e9ac5f0fa8549dffe2a15870217a9c2e7cd557ec.tar.xz
Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying more changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/ext4/ialloc.c')
-rw-r--r--fs/ext4/ialloc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 8012a5daf401..ac644c31ca67 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -887,6 +887,10 @@ got:
struct buffer_head *block_bitmap_bh;
block_bitmap_bh = ext4_read_block_bitmap(sb, group);
+ if (!block_bitmap_bh) {
+ err = -EIO;
+ goto out;
+ }
BUFFER_TRACE(block_bitmap_bh, "get block bitmap access");
err = ext4_journal_get_write_access(handle, block_bitmap_bh);
if (err) {