Btrfs: fix double free in find_lock_delalloc_range
authorChris Mason <clm@fb.com>
Wed, 21 May 2014 12:49:54 +0000 (05:49 -0700)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 11 Jul 2014 12:33:48 +0000 (13:33 +0100)
commit232270aa2ac2e463afd41cd38665ddb275277d79
treed3894b4ac3767918f2ab59b6d6957a72f358959a
parent858454485f3794190a6dcffcd1866cc21a952fd1
Btrfs: fix double free in find_lock_delalloc_range

commit 7d78874273463a784759916fc3e0b4e2eb141c70 upstream.

We need to NULL the cached_state after freeing it, otherwise
we might free it again if find_delalloc_range doesn't find anything.

Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
fs/btrfs/extent_io.c