tree 17c48d146c0f9eb7367a0d0feafea29838eae8eb
parent 1ec22eb2b4a2e1a763106bce36b11c02eaa84e61
author NeilBrown <neilb@suse.de> 1246415241 +1000
committer NeilBrown <neilb@suse.de> 1246415241 +1000

md: tidy up error paths in md_alloc

As the recent bug in md_alloc showed, having a single exit path for
unlocking and putting is a good idea.  So restructure md_alloc to have
a single mutex_unlock and mddev_put, and use gotos where necessary.

Found-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>