tree 32526078700e26c6e67aea5eb141fe152d1da9f7
parent efe311431869b40d67911820a309f9a1a41306f3
author Neil Brown <neilb@notabene.brown> 1214605877 +1000
committer Neil Brown <neilb@notabene.brown> 1214605877 +1000

Fix error paths if md_probe fails.

md_probe can fail (e.g. alloc_disk could fail) without
returning an error (as it alway returns NULL).
So when we call mddev_find immediately afterwards, we need
to check that md_probe actually succeeded.  This means checking
that mdev->gendisk is non-NULL.

cc: <stable@kernel.org>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Neil Brown <neilb@suse.de>