sound, ca0106: Fix assignment to 'channel'.

The assignment to the local variable 'channel' in
snd_ca0106_pcm_pointer_capture() is a little crazy.  Order of assignment is
undefined. This fixes it.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

sound/pci/ca0106/ca0106_main.c

@@ -1082,7 +1082,7 @@ snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_ca0106_pcm *epcm = runtime->private_data;
 	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
-	int channel = channel=epcm->channel_id;
+	int channel = epcm->channel_id;
 
 	if (!epcm->running)
 		return 0;