[PATCH v4 04/25] mmc: core: report tuning command execution failure reason

Russell King
2016-01-29T09:44:15Z

Print the error code when the tuning command fails. This allows the
reason for the failure to be reported, which aids debugging.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/mmc/core/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index c4b95a5d7299..cfb5281b6cd7 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1079,7 +1079,7 @@ int mmc_execute_tuning(struct mmc_card *card)
err = host->ops->execute_tuning(host, opcode);

if (err)
- pr_err("%s: tuning execution failed\n", mmc_hostname(host));
+ pr_err("%s: tuning execution failed: %d\n", mmc_hostname(host), err);
else
mmc_retune_enable(host);

--
2.1.0