summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJoseph Gruher <joseph.r.gruher@intel.com>2011-01-05 16:00:21 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2011-03-23 13:04:03 -0700
commit0b67526b4e76946e2b2e2da4cf8175ad78ae2879 (patch)
treefbd992547ae309b819f29e492e462dec9153309e
parent97272fc63f9c067b9c932e5b289f934044615603 (diff)
scsi_dh_alua: fix deadlock in stpg_endio
commit ed0f36bc5719b25659b637f80ceea85494b84502 upstream. The use of blk_execute_rq_nowait() implies __blk_put_request() is needed in stpg_endio() rather than blk_put_request() -- blk_finish_request() is called with queue lock already held. Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com> Signed-off-by: Ilgu Hong <ilgu.hong@promise.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 6b729324b8d3..30f2b333ccbd 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -285,7 +285,8 @@ static void stpg_endio(struct request *req, int error)
print_alua_state(h->state));
}
done:
- blk_put_request(req);
+ req->end_io_data = NULL;
+ __blk_put_request(req->q, req);
if (h->callback_fn) {
h->callback_fn(h->callback_data, err);
h->callback_fn = h->callback_data = NULL;