Staging: rts5139: fix parantheses coding style issue in ms.c

This patch fixes an unnecessary return statement parantheses error
found in ms.c by the checkpatch.pl tool.
Signed-off-by: NPreetam D'Souza <preetamjdsouza@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rts5139/ms.c

@@ -48,7 +48,7 @@ static inline int ms_check_err_code(struct rts51x_chip *chip, u8 err_code)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
 
-	return (ms_card->err_code == err_code);
+	return ms_card->err_code == err_code;
 }
 
 static int ms_parse_err_code(struct rts51x_chip *chip)