block: check for timeout function in blk_rq_timed_out()

rq_timed_out_fn might have been unset while the request
was in flight, so we need to check for it in blk_rq_timed_out().

Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hannes Reinecke 2013-01-30 09:26:17 +00:00 committed by Martin Schwidefsky
parent d1ffc1f866
commit 80bd7181b0

View File

@ -82,9 +82,10 @@ void blk_delete_timer(struct request *req)
static void blk_rq_timed_out(struct request *req)
{
struct request_queue *q = req->q;
enum blk_eh_timer_return ret;
enum blk_eh_timer_return ret = BLK_EH_RESET_TIMER;
ret = q->rq_timed_out_fn(req);
if (q->rq_timed_out_fn)
ret = q->rq_timed_out_fn(req);
switch (ret) {
case BLK_EH_HANDLED:
__blk_complete_request(req);