[PATCH 1/2] mmc: do not send cmd13 if the parameter 'send_status' is 0 for __mmc_switch

[haibo.chen at nxp.com]

From: Haibo Chen <haibo.chen at nxp.com>

According to the code logic in __mmc_switch, if the parameter 'send_status'
is zero, no need to send cmd13, just wait the stated timeout time, then
can return directly.

Signed-off-by: Haibo Chen <haibo.chen at nxp.com>
---
 drivers/mmc/mmc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index d79cdef62e..6cb2af4232 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -805,8 +805,10 @@ static int __mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value,
 	 * capable of polling by using mmc_wait_dat0, then rely on waiting the
 	 * stated timeout to be sufficient.
 	 */
-	if (ret == -ENOSYS && !send_status)
+	if (ret == -ENOSYS && !send_status) {
 		mdelay(timeout_ms);
+		return 0;
+	}
 
 	/* Finally wait until the card is ready or indicates a failure
 	 * to switch. It doesn't hurt to use CMD13 here even if send_status
-- 
2.17.1