tree 9bae14a5fa0b68573758dcc1aaaa176f4a62c6b8
parent a1b075d28da563c5e2325577f282c042494254ba
author Chris Mason <chris.mason@oracle.com> 1290396464 -0500
committer Chris Mason <chris.mason@oracle.com> 1290396464 -0500

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>