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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-31 16:22:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-31 16:22:29 -0700
commit32e8fd2f8eac3262e7000d9a219d70ace10e0adf (patch)
tree6f02a4e425318565399628f5f9009e922b373cea /fs/ext4/ialloc.c
parente2488ab6ab34cddccda5e839eaeb37f72701830e (diff)
parentae9e9c6aeea6f91ccb4fb369d7dd8f1a8b5f6a58 (diff)
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o: "A set of miscellaneous ext4 bug fixes for 3.18" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: make ext4_ext_convert_to_initialized() return proper number of blocks ext4: bail early when clearing inode journal flag fails ext4: bail out from make_indexed_dir() on first error jbd2: use a better hash function for the revoke table ext4: prevent bugon on race between write/fcntl ext4: remove extent status procfs files if journal load fails ext4: disallow changing journal_csum option during remount ext4: enable journal checksum when metadata checksum feature enabled ext4: fix oops when loading block bitmap failed ext4: fix overflow when updating superblock backups after resize
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 8012a5daf40..ac644c31ca6 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) {