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mmc: block: break out mmc_blk_rw_cmd_abort() 

As a first step toward breaking apart the very complex function
mmc_blk_issue_rw_rq() we break out the command abort code.
This code assumes "ret" is != 0 and then repeatedly hammers
blk_end_request() until the request to the block layer to end
the request succeeds.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Linus Walleij 2017-01-24 11:17:52 +01:00 committed by Ulf Hansson
parent e64aae82ea
commit 4e1f780032
1 changed files with 12 additions and 5 deletions
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17
drivers/mmc/core/block.c
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@ -1598,6 +1598,17 @@ static int mmc_blk_cmd_err(struct mmc_blk_data *md, struct mmc_card *card,
return ret;
}
static void mmc_blk_rw_cmd_abort(struct mmc_card *card, struct request *req)
{
int ret = 1;
if (mmc_card_removed(card))
req->rq_flags |= RQF_QUIET;
while (ret)
ret = blk_end_request(req, -EIO,
blk_rq_cur_bytes(req));
}
static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
{
struct mmc_blk_data *md = mq->blkdata;
@ -1737,11 +1748,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
return 1;
cmd_abort:
if (mmc_card_removed(card))
req->rq_flags |= RQF_QUIET;
while (ret)
ret = blk_end_request(req, -EIO,
blk_rq_cur_bytes(req));
mmc_blk_rw_cmd_abort(card, req);
start_new_req:
if (rqc) {