ALSA: emu10k1: Remove always NULL parameters

The various PCM and hwdep allocation functions in this driver take a pointer
to a pointer of a PCM/hwdep where if this parameter is provided the newly
allocated object is stored. All callers pass NULL though, so remove the
parameter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/emu10k1/emu10k1x.c

@@ -847,15 +847,13 @@ static const struct snd_pcm_chmap_elem clfe_map[] = {
 	{ }
 };
 
-static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
+static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device)
 {
 	struct snd_pcm *pcm;
 	const struct snd_pcm_chmap_elem *map = NULL;
 	int err;
 	int capture = 0;
   
-	if (rpcm)
-		*rpcm = NULL;
 	if (device == 0)
 		capture = 1;
 	
@@ -896,15 +894,8 @@ static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **r
 					      snd_dma_pci_data(emu->pci), 
 					      32*1024, 32*1024);
   
-	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
+	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
 				     1 << 2, NULL);
-	if (err < 0)
-		return err;
-
-	if (rpcm)
-		*rpcm = pcm;
-  
-	return 0;
 }
 
 static int snd_emu10k1x_create(struct snd_card *card,
@@ -1583,15 +1574,15 @@ static int snd_emu10k1x_probe(struct pci_dev *pci,
 		return err;
 	}
 
-	if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
+	if ((err = snd_emu10k1x_pcm(chip, 0)) < 0) {
 		snd_card_free(card);
 		return err;
 	}
-	if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
+	if ((err = snd_emu10k1x_pcm(chip, 1)) < 0) {
 		snd_card_free(card);
 		return err;
 	}
-	if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
+	if ((err = snd_emu10k1x_pcm(chip, 2)) < 0) {
 		snd_card_free(card);
 		return err;
 	}