media: em28xx-audio: use semicolons rather than commas to separate statements

Replace commas with semicolons.  Commas introduce unnecessary
variability in the code structure and are hard to see.  What is done
is essentially described by the following Coccinelle semantic patch
(http://coccinelle.lip6.fr/):

// <smpl>
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/usb/em28xx/em28xx-audio.c

@@ -583,9 +583,9 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev,
 	struct snd_kcontrol_new tmp;
 
 	memset(&tmp, 0, sizeof(tmp));
-	tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-	tmp.private_value = id,
-	tmp.name  = ctl_name,
+	tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	tmp.private_value = id;
+	tmp.name  = ctl_name;
 
 	/* Add Mute Control */
 	sprintf(ctl_name, "%s Switch", name);
@@ -600,16 +600,16 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev,
 		ctl_name, id);
 
 	memset(&tmp, 0, sizeof(tmp));
-	tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-	tmp.private_value = id,
-	tmp.name  = ctl_name,
+	tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	tmp.private_value = id;
+	tmp.name  = ctl_name;
 
 	/* Add Volume Control */
 	sprintf(ctl_name, "%s Volume", name);
 	tmp.get   = em28xx_vol_get;
 	tmp.put   = em28xx_vol_put;
 	tmp.info  = em28xx_vol_info;
-	tmp.tlv.p = em28xx_db_scale,
+	tmp.tlv.p = em28xx_db_scale;
 	kctl = snd_ctl_new1(&tmp, dev);
 	err = snd_ctl_add(card, kctl);
 	if (err < 0)