ALSA: usb-audio: reverse condition logic in set_sync_endpoint

Reverse logic on the conditions required to qualify for a sync endpoint
and remove one level of indendation.
Signed-off-by: NEldad Zack <eldad@fogrefinery.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/usb/pcm.c

@@ -419,9 +419,13 @@ static int set_sync_endpoint(struct snd_usb_substream *subs,
 	if (err < 0)
 		return err;
 
-	if (((is_playback && attr == USB_ENDPOINT_SYNC_ASYNC) ||
-	     (!is_playback && attr == USB_ENDPOINT_SYNC_ADAPTIVE)) &&
-	    altsd->bNumEndpoints >= 2) {
+	if (altsd->bNumEndpoints < 2)
+		return 0;
+
+	if ((is_playback && attr != USB_ENDPOINT_SYNC_ASYNC) ||
+	    (!is_playback && attr != USB_ENDPOINT_SYNC_ADAPTIVE))
+		return 0;
+
 	/* check sync-pipe endpoint */
 	/* ... and check descriptor size before accessing bSynchAddress
 	   because there is a version of the SB Audigy 2 NX firmware lacking
@@ -440,7 +444,7 @@ static int set_sync_endpoint(struct snd_usb_substream *subs,
 	ep = get_endpoint(alts, 1)->bEndpointAddress;
 	if (!implicit_fb &&
 	    get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE &&
-		    (( is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) ||
+	    ((is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) ||
 	     (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) {
 		snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n",
 			   dev->devnum, fmt->iface, fmt->altsetting,
@@ -460,7 +464,6 @@ static int set_sync_endpoint(struct snd_usb_substream *subs,
 		return -EINVAL;
 
 	subs->data_endpoint->sync_master = subs->sync_endpoint;
-	}
 
 	return 0;
 }