staging: rts5208: Rewrite redundant if statement to improve code style

This commit uses the fact that

    if (a) {
            if (b) {
                    ...
            }
    }

can instead be written as

    if (a && b) {
            ...
    }

without any change in behavior, allowing to decrease the indentation
of the contained code block and thus reducing the average line length.
Signed-off-by: Tobias Nießen <tobias.niessen@stud.uni-hannover.de>
Signed-off-by: Sabrina Gaube <sabrina-gaube@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rts5208/sd.c

@@ -4507,8 +4507,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			sd_lock_state, sd_card->sd_lock_status);
 		if (sd_lock_state ^ (sd_card->sd_lock_status & SD_LOCKED)) {
 			sd_card->sd_lock_notify = 1;
-			if (sd_lock_state) {
-				if (sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) {
+			if (sd_lock_state &&
+			    (sd_card->sd_lock_status & SD_LOCK_1BIT_MODE)) {
 				sd_card->sd_lock_status |= (
 					SD_UNLOCK_POW_ON | SD_SDR_RST);
 				if (CHK_SD(sd_card)) {
@@ -4523,7 +4523,6 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			}
 		}
 	}
-	}
 
 	if (lock_cmd_fail) {
 		scsi_set_resid(srb, 0);