tree 6d7eb913a79b11f8ed9beee30c81eca81e271ed2
parent c65b99f046843d2455aa231747b5a07a999a9f3d
author NeilBrown <neilb@suse.de> 1434102404 +1000
committer NeilBrown <neilb@suse.de> 1434104176 +1000

md: don't return 0 from array_state_store

Returning zero from a 'store' function is bad.
The return value should be either len length of the string
or an error.

So use 'len' if 'err' is zero.

Fixes: 6791875e2e53 ("md: make reconfig_mutex optional for writes to md sysfs files.")
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@vger.kernel (v4.0+)