[media] tvaudio: fix tda8425_setmode

The passed audio mode is not a bitfield.
Signed-off-by: Daniel Glöckner <daniel-gl@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/tvaudio.c

@@ -1230,21 +1230,25 @@ static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
 {
 	int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
 
-	if (mode & V4L2_TUNER_MODE_LANG1) {
+	switch (mode) {
+	case V4L2_TUNER_MODE_LANG1:
 		s1 |= TDA8425_S1_ML_SOUND_A;
 		s1 |= TDA8425_S1_STEREO_PSEUDO;
-
-	} else if (mode & V4L2_TUNER_MODE_LANG2) {
+		break;
+	case V4L2_TUNER_MODE_LANG2:
 		s1 |= TDA8425_S1_ML_SOUND_B;
 		s1 |= TDA8425_S1_STEREO_PSEUDO;
-
-	} else {
+		break;
+	case V4L2_TUNER_MODE_MONO:
 		s1 |= TDA8425_S1_ML_STEREO;
-
-		if (mode & V4L2_TUNER_MODE_MONO)
-			s1 |= TDA8425_S1_STEREO_MONO;
-		if (mode & V4L2_TUNER_MODE_STEREO)
-			s1 |= TDA8425_S1_STEREO_SPATIAL;
+		s1 |= TDA8425_S1_STEREO_MONO;
+		break;
+	case V4L2_TUNER_MODE_STEREO:
+		s1 |= TDA8425_S1_ML_STEREO;
+		s1 |= TDA8425_S1_STEREO_SPATIAL;
+		break;
+	default:
+		return;
 	}
 	chip_write(chip,TDA8425_S1,s1);
 }