ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()

I don't think this works as intended.  '|' higher precedence than ?: so
the bitwize OR "0 | (val & STR_MOST)" is a no-op.

I have re-written it to be more clear.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/es1968.c

@@ -2581,9 +2581,14 @@ static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea)
 	struct es1968 *chip = tea->private_data;
 	unsigned long io = chip->io_port + GPIO_DATA;
 	u16 val = inw(io);
-
-	return  (val & STR_DATA) ? TEA575X_DATA : 0 |
-		(val & STR_MOST) ? TEA575X_MOST : 0;
+	u8 ret;
+
+	ret = 0;
+	if (val & STR_DATA)
+		ret |= TEA575X_DATA;
+	if (val & STR_MOST)
+		ret |= TEA575X_MOST;
+	return ret;
 }
 
 static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool output)