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| author | Adrian Hunter <adrian.hunter@intel.com> | 2016-11-29 12:09:09 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-12-05 10:31:03 +0100 |
| commit | 5be80375f5a030e5f5beba76620380da5ea6cefa (patch) | |
| tree | eaf9dbc88bc1970413b8eb16ed92b502b52cd01f /drivers/mmc/card | |
| parent | 5dd784d2e4eb765ae86b3366484d01429bb7adca (diff) | |
| download | linux-stable-5be80375f5a030e5f5beba76620380da5ea6cefa.tar.gz linux-stable-5be80375f5a030e5f5beba76620380da5ea6cefa.tar.bz2 linux-stable-5be80375f5a030e5f5beba76620380da5ea6cefa.zip | |
mmc: block: Fix 4K native sector check
The 4K native sector check does not allow for the 'do' loop nor the
variables used after the 'cmd_abort' label.
'brq' and 'req' get reassigned in the 'do' loop, so the check must not
assume what their values are. After the 'cmd_abort' label, 'mq_rq' and
'req' are used, but 'rqc' must be NULL otherwise it can be started again.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/card')
| -rw-r--r-- | drivers/mmc/card/block.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 19597e3cefcb..3e73be0e7281 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1597,11 +1597,11 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) { struct mmc_blk_data *md = mq->blkdata; struct mmc_card *card = md->queue.card; - struct mmc_blk_request *brq = &mq->mqrq_cur->brq; + struct mmc_blk_request *brq; int ret = 1, disable_multi = 0, retry = 0, type, retune_retry_done = 0; enum mmc_blk_status status; struct mmc_queue_req *mq_rq; - struct request *req = rqc; + struct request *req; struct mmc_async_req *areq; if (!rqc && !mq->mqrq_prev->req) @@ -1616,8 +1616,10 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) if (mmc_large_sector(card) && !IS_ALIGNED(blk_rq_sectors(rqc), 8)) { pr_err("%s: Transfer size is not 4KB sector size aligned\n", - req->rq_disk->disk_name); + rqc->rq_disk->disk_name); mq_rq = mq->mqrq_cur; + req = rqc; + rqc = NULL; goto cmd_abort; } |