[ALSA] sound: riptide.c fix shadowed variable warnings

In both cases we are passing around the substream number, use
sub_num for this.
sound/pci/riptide/riptide.c:1633:6: warning: symbol 'index' shadows an earlier one
sound/pci/riptide/riptide.c:121:12: originally declared here
sound/pci/riptide/riptide.c:1673:6: warning: symbol 'index' shadows an earlier one
sound/pci/riptide/riptide.c:121:12: originally declared here

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 7 deletions

diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index 9408b1eeec40..979f7da641ce 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -1630,14 +1630,14 @@ static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
         struct snd_riptide *chip = snd_pcm_substream_chip(substream);
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct pcmhw *data;
-        int index = substream->number;
+        int sub_num = substream->number;
 
-        chip->playback_substream[index] = substream;
+        chip->playback_substream[sub_num] = substream;
         runtime->hw = snd_riptide_playback;
         data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
-        data->paths = lbus_play_paths[index];
-        data->id = play_ids[index];
-        data->source = play_sources[index];
+        data->paths = lbus_play_paths[sub_num];
+        data->id = play_ids[sub_num];
+        data->source = play_sources[sub_num];
         data->intdec[0] = 0xff;
         data->intdec[1] = 0xff;
         data->state = ST_STOP;
@@ -1670,10 +1670,10 @@ static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
 {
         struct snd_riptide *chip = snd_pcm_substream_chip(substream);
         struct pcmhw *data = get_pcmhwdev(substream);
-        int index = substream->number;
+        int sub_num = substream->number;
 
         substream->runtime->private_data = NULL;
-        chip->playback_substream[index] = NULL;
+        chip->playback_substream[sub_num] = NULL;
         kfree(data);
         return 0;
 }