diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2011-09-23 12:48:20 +0300 |
|---|---|---|
| committer | Ulf HANSSON <ulf.hansson@stericsson.com> | 2011-10-10 14:37:28 +0200 |
| commit | f3523d86b520b08443eb56e05cdc76e370cf9386 (patch) | |
| tree | e269ebd7d564470d2d24e8440aa9363af8b2489a | |
| parent | c5b85862d6be4fb51a3450303e5e86ad98de8092 (diff) | |
mmc: block: fix boot partition switch error path
In the case of a switch error, do not update partition config as though
the switch succeeded, and ensure blk_end_request is called on the
failed request.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andrei Warkentin <andrey.warkentin@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Change-Id: I7dce34a7ff16adbc71d146a4dfa9f8c4bc484aab
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33462
Reviewed-by: Ulf HANSSON <ulf.hansson@stericsson.com>
Tested-by: Ulf HANSSON <ulf.hansson@stericsson.com>
| -rw-r--r-- | drivers/mmc/card/block.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index e2ddbe11da3..f1f0a0b6d0d 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -443,18 +443,23 @@ static inline int mmc_blk_part_switch(struct mmc_card *card, { int ret; struct mmc_blk_data *main_md = mmc_get_drvdata(card); + if (main_md->part_curr == md->part_type) return 0; if (mmc_card_mmc(card)) { - card->ext_csd.part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; - card->ext_csd.part_config |= md->part_type; + u8 part_config = card->ext_csd.part_config; + + part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; + part_config |= md->part_type; ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_PART_CONFIG, card->ext_csd.part_config, + EXT_CSD_PART_CONFIG, part_config, card->ext_csd.part_time); if (ret) return ret; + + card->ext_csd.part_config = part_config; } main_md->part_curr = md->part_type; @@ -1276,6 +1281,11 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) ret = mmc_blk_part_switch(card, md); if (ret) { + if (req) { + spin_lock_irq(&md->lock); + __blk_end_request_all(req, -EIO); + spin_unlock_irq(&md->lock); + } ret = 0; goto out; } |