Staging: line6: fix checkpatch errors in playback.c

2 errors left, but they are minor.
Lots of warnings also fixed up.

Cc: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/line6/playback.c

@@ -24,7 +24,8 @@
 /*
 	Software stereo volume control.
 */
-static void change_volume(struct urb *urb_out, int volume[], int bytes_per_frame)
+static void change_volume(struct urb *urb_out, int volume[],
+			  int bytes_per_frame)
 {
 	int chn = 0;
 
@@ -40,14 +41,14 @@ static void change_volume(struct urb *urb_out, int volume[], int bytes_per_frame
 			*p = (*p * volume[chn & 1]) >> 8;
 			++chn;
 		}
-	}
-	else if(bytes_per_frame == 6) {
+	} else if (bytes_per_frame == 6) {
 		unsigned char *p, *buf_end;
 		p = (unsigned char *)urb_out->transfer_buffer;
 		buf_end = p + urb_out->transfer_buffer_length;
 
 		for (; p < buf_end; p += 3) {
-			int val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16);
+			int val;
+			val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16);
 			val = (val * volume[chn & 1]) >> 8;
 			p[0] = val;
 			p[1] = val >> 8;
@@ -102,8 +103,7 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
 	if (test_bit(BIT_PAUSE_PLAYBACK, &line6pcm->flags)) {
 		urb_out->transfer_buffer = line6pcm->wrap_out;
 		memset(line6pcm->wrap_out, 0, urb_size);
-	}
-	else {
+	} else {
 		if (line6pcm->pos_out + urb_frames > runtime->buffer_size) {
 			/*
 				The transferred area goes over buffer boundary,
@@ -116,11 +116,9 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
 			if (len > 0) {
 				memcpy(line6pcm->wrap_out, runtime->dma_area + line6pcm->pos_out * bytes_per_frame, len * bytes_per_frame);
 				memcpy(line6pcm->wrap_out + len * bytes_per_frame, runtime->dma_area, (urb_frames - len) * bytes_per_frame);
-			}
-			else
+			} else
 				dev_err(s2m(substream), "driver bug: len = %d\n", len);  /* this is somewhat paranoid */
-		}
-		else {
+		} else {
 			/* set the buffer pointer */
 			urb_out->transfer_buffer = runtime->dma_area + line6pcm->pos_out * bytes_per_frame;
 		}
@@ -156,9 +154,11 @@ static int submit_audio_out_all_urbs(struct snd_pcm_substream *substream)
 {
 	int ret, i;
 
-	for(i = 0; i < LINE6_ISO_BUFFERS; ++i)
-		if((ret = submit_audio_out_urb(substream)) < 0)
+	for (i = 0; i < LINE6_ISO_BUFFERS; ++i) {
+		ret = submit_audio_out_urb(substream);
+		if (ret < 0)
 			return ret;
+	}
 
 	return 0;
 }
@@ -275,8 +275,9 @@ static int snd_line6_playback_open(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
 
-	if((err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
-																					(&line6pcm->properties->snd_line6_rates))) < 0)
+	err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+					    (&line6pcm->properties->snd_line6_rates));
+	if (err < 0)
 		return err;
 
 	runtime->hw = line6pcm->properties->snd_line6_playback_hw;
@@ -307,7 +308,9 @@ static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream, str
 	}
 	/* -- [FD] end */
 
-	if((ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+	ret = snd_pcm_lib_malloc_pages(substream,
+				       params_buffer_bytes(hw_params));
+	if (ret < 0)
 		return ret;
 
 	line6pcm->period_out = params_period_bytes(hw_params);
@@ -327,10 +330,8 @@ static int snd_line6_playback_hw_free(struct snd_pcm_substream *substream)
 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
 	unlink_wait_clear_audio_out_urbs(line6pcm);
 
-	if(line6pcm->wrap_out) {
 	kfree(line6pcm->wrap_out);
 	line6pcm->wrap_out = NULL;
-	}
 
 	return snd_pcm_lib_free_pages(substream);
 }