Introduce a helper function to not only check the error value but also
error bits of a R1 response. Use the helper for the stop command.

Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---

So, here is a first draft of what we talked about recenlty. Let me know what
you think...

 drivers/mmc/core/block.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 985477cdcb3ea4..b96477b689e457 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1292,9 +1292,18 @@ 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)
 {
@@ -1316,7 +1325,7 @@ 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:
-- 
2.11.0

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