diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2017-04-08 23:20:05 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-06-20 11:30:47 +0300 |
| commit | a04e6bae9e6f12c3a2aa4c84d50d1dcb79ce9814 (patch) | |
| tree | 4f34927a372395d54340208961f496b84d4ae791 /drivers/mmc | |
| parent | 0796e439c5cc4ceeb84e08479c5ee1a4ebab5549 (diff) | |
| download | linux-a04e6bae9e6f12c3a2aa4c84d50d1dcb79ce9814.tar.xz | |
mmc: core: check also R1 response for stop commands
To detect errors like ECC errors, we must parse the R1 response bits. Introduce
a helper function to also set the error value of a command when R1 error bits
are set. Add ECC error to list of flags checked. Use the new helper for the
stop command to call mmc_blk_recovery when detecting ECC errors which are only
flagged on the next command after multiblock.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/block.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 64f9fda92229..58d4e653dd74 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1359,9 +1359,18 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq, R1_ADDRESS_ERROR | /* Misaligned address */ \ R1_BLOCK_LEN_ERROR | /* Transferred block length incorrect */\ R1_WP_VIOLATION | /* Tried to write to protected block */ \ + R1_CARD_ECC_FAILED | /* Card ECC failed */ \ R1_CC_ERROR | /* Card controller error */ \ R1_ERROR) /* General/unknown error */ +static bool mmc_blk_has_cmd_err(struct mmc_command *cmd) +{ + if (!cmd->error && cmd->resp[0] & CMD_ERRORS) + cmd->error = -EIO; + + return cmd->error; +} + static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, struct mmc_async_req *areq) { @@ -1383,7 +1392,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, * stop.error indicates a problem with the stop command. Data * may have been transferred, or may still be transferring. */ - if (brq->sbc.error || brq->cmd.error || brq->stop.error || + if (brq->sbc.error || brq->cmd.error || mmc_blk_has_cmd_err(&brq->stop) || brq->data.error) { switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err, &gen_err)) { case ERR_RETRY: |