tree 197f4a00ec3eba9e00cdc264c25749914667c389
parent 6bb597507f9839b13498781e481f5458aea33620
author NeilBrown <neilb@suse.de> 1238992838 +1000
committer NeilBrown <neilb@suse.de> 1238992838 +1000

md/raid1 - don't assume newly allocated bvecs are initialised.

Since commit d3f761104b097738932afcc310fbbbbfb007ef92
newly allocated bvecs aren't initialised to NULL, so we have
to be more careful about freeing a bio which only managed
to get a few pages allocated to it.  Otherwise the resync
process crashes.

This patch is appropriate for 2.6.29-stable.

Cc: stable@kernel.org
Cc: "Jens Axboe" <jens.axboe@oracle.com>
Reported-by: Gabriele Tozzi <gabriele@tozzi.eu>
Signed-off-by: NeilBrown <neilb@suse.de>