tree 6f66c857c212a5d8faa4347c0f1d331e47492c01
parent 0448748849ef7c593be40e2c1404f7974bd3aac6
author Josef Bacik <jbacik@fusionio.com> 1359645784 -0500
committer Josef Bacik <jbacik@fusionio.com> 1361383151 -0500

Btrfs: remove extent mapping if we fail to add chunk

I got a double free error when unmounting a file system that failed to add a
chunk during its operation.  This is because we will kfree the mapping that
we created but leave the extent_map in the em_tree for chunks.  So to fix
this just remove the extent_map when we error out so we don't run into this
problem.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>