[PATCH 4.4 005/113] staging: rts5208: fix missing error check on call to rtsx_write_register

[Greg Kroah-Hartman]

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

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

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

[ Upstream commit c5fae4f4fd28189b1062fb8ef7b21fec37cb8b17 ]

Currently the check on error return from the call to rtsx_write_register
is checking the error status from the previous call. Fix this by adding
in the missing assignment of retval.

Detected by CoverityScan, CID#709877

Fixes: fa590c222fba ("staging: rts5208: add support for rts5208 and rts5288")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/staging/rts5208/sd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -5031,7 +5031,7 @@ int sd_execute_write_data(struct scsi_cm
 			goto SD_Execute_Write_Cmd_Failed;
 		}
 
-		rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
+		retval = rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
 		if (retval != STATUS_SUCCESS) {
 			rtsx_trace(chip);
 			goto SD_Execute_Write_Cmd_Failed;