From 7a1e9d829f8bd821466c5ea834ad6f378740d2be Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 25 Jan 2011 11:52:17 -0500 Subject: [PATCH] [SCSI] scsi_dh_hp_sw: fix deadlock in start_stop_endio The use of blk_execute_rq_nowait() implies __blk_put_request() is needed in start_stop_endio() rather than blk_put_request() -- blk_finish_request() is called with queue lock already held. Signed-off-by: Mike Snitzer Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index e3916641e627..d0363c8fa348 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -225,7 +225,8 @@ static void start_stop_endio(struct request *req, int error) } } 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; -- 2.34.1