[PATCH 4.14 104/164] mmc: tmio: Fix error handling when issuing CMD23

From: Greg Kroah-Hartman
Date: Sun Apr 22 2018 - 11:21:16 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>

commit fc167daff581c01ebce8695e9618231cae3561a1 upstream.

If an error was detected when CMD23 was issued, command sequence should
be terminated with errors and CMD23 should be issued after retuning.

Fixes: 8b22c3c18be5 ("mmc: tmio: add CMD23 support")
Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 4.13+
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/mmc/host/tmio_mmc_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -911,7 +911,7 @@ static void tmio_mmc_finish_request(stru
host->check_scc_error(host);

/* If SET_BLOCK_COUNT, continue with main command */
- if (host->mrq) {
+ if (host->mrq && !mrq->cmd->error) {
tmio_process_mrq(host, mrq);
return;
}