tree 9a93ab26f6354988241dc003a9ab16b77a3d75d3
parent fd177481b440c3f7b5ee9b821a76b29fdf2a6712
author NeilBrown <neilb@suse.de> 1349923470 +1100
committer NeilBrown <neilb@suse.de> 1349923470 +1100

md/raid1: Don't release reference to device while handling read error.

When we get a read error, we arrange for raid1d to handle it.
Currently we release the reference on the device.  This can result
in
   conf->mirrors[read_disk].rdev
being NULL in fix_read_error, if the device happens to get removed
before the read error is handled.

So instead keep the reference until the read error has been fully
handled.

Reported-by: hank <pyu@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>