mmc: queue: amend buffer swap for non-blocking transfer
authorSeungwon Jeon <tgih.jun@samsung.com>
Fri, 28 Sep 2012 10:12:53 +0000 (19:12 +0900)
committerChris Ball <cjb@laptop.org>
Thu, 6 Dec 2012 18:54:37 +0000 (13:54 -0500)
commit45c5a914e68fdbbc2635c3cc197566aa24e8de5b
treeed3c0d93646ef19f712211425149611e3c4091b0
parent42cd95a0603e0497e7221816bb5ddfe861ee9325
mmc: queue: amend buffer swap for non-blocking transfer

In case both 'req' and 'mq->mqrq_prev->req' are null, there is no request
to be processed. That means there is no need to switch buffer.
Switching buffer is required only after finishing 'issue_fn'.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Per Forlin <per.forlin@stericsson.com>
Tested-by: Johan Rudholm <johan.rudholm@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/card/queue.c