Btrfs: avoid NULL pointer deref in try_release_extent_buffer
authorChris Mason <chris.mason@oracle.com>
Mon, 22 Nov 2010 03:27:44 +0000 (22:27 -0500)
committerChris Mason <chris.mason@oracle.com>
Mon, 22 Nov 2010 03:27:44 +0000 (22:27 -0500)
commit45f49bce99d008d6864a20324548f35936ba46fb
tree9bae14a5fa0b68573758dcc1aaaa176f4a62c6b8
parenta1b075d28da563c5e2325577f282c042494254ba
Btrfs: avoid NULL pointer deref in try_release_extent_buffer

If we fail to find a pointer in the radix tree, don't try
to deref the NULL one we do have.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/extent_io.c