[U-Boot] [u-boot][RFC v1] mmc: Remove unused variable backup from mmc_send_cmd()

[Oleksandr Tyshchenko]

Do not call a memset for unused variable backup every time.
Remove unused variable from function.

Signed-off-by: Oleksandr Tyshchenko <oleksandr.tyshchenko at ti.com>
---
 drivers/mmc/mmc.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 73f7195..c9cb9ff 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -71,11 +71,8 @@ int board_mmc_getcd(struct mmc *mmc)__attribute__((weak,
 static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 			struct mmc_data *data)
 {
-	struct mmc_data backup;
 	int ret;
 
-	memset(&backup, 0, sizeof(backup));
-
 #ifdef CONFIG_MMC_TRACE
 	int i;
 	u8 *ptr;
-- 
1.7.9.5