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authorJoseph Gruher <joseph.r.gruher@intel.com>2011-01-05 16:00:21 -0500
committerJames Bottomley <James.Bottomley@suse.de>2011-01-24 11:13:13 -0600
commited0f36bc5719b25659b637f80ceea85494b84502 (patch)
tree55e69f3c8d5f19bc7676f33ca5aeb231eb46e8a0 /drivers/scsi/device_handler
parent7c66e9a5e6b0459c619562c5ad321071e2767faa (diff)
downloadop-kernel-dev-ed0f36bc5719b25659b637f80ceea85494b84502.zip
op-kernel-dev-ed0f36bc5719b25659b637f80ceea85494b84502.tar.gz
[SCSI] scsi_dh_alua: fix deadlock in stpg_endio
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> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/device_handler')
-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 afb1d05..ba3c649 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;
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