media: Drop superfluous PCM preallocation error checks

snd_pcm_lib_preallocate_pages() and co always succeed, so the error
check is simply redundant.  Drop it.
Acked-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

drivers/media/pci/solo6x10/solo6x10-g723.c

@@ -360,13 +360,11 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
 	     ss; ss = ss->next, i++)
 		sprintf(ss->name, "Camera #%d Audio", i);
 
-	ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
+	snd_pcm_lib_preallocate_pages_for_all(pcm,
 					SNDRV_DMA_TYPE_CONTINUOUS,
 					snd_dma_continuous_data(GFP_KERNEL),
 					G723_PERIOD_BYTES * PERIODS,
 					G723_PERIOD_BYTES * PERIODS);
-	if (ret < 0)
-		return ret;
 
 	solo_dev->snd_pcm = pcm;
 

drivers/media/pci/tw686x/tw686x-audio.c

@@ -301,11 +301,12 @@ static int tw686x_snd_pcm_init(struct tw686x_dev *dev)
 	     ss; ss = ss->next, i++)
 		snprintf(ss->name, sizeof(ss->name), "vch%u audio", i);
 
-	return snd_pcm_lib_preallocate_pages_for_all(pcm,
+	snd_pcm_lib_preallocate_pages_for_all(pcm,
 				SNDRV_DMA_TYPE_DEV,
 				snd_dma_pci_data(dev->pci_dev),
 				TW686X_AUDIO_PAGE_MAX * AUDIO_DMA_SIZE_MAX,
 				TW686X_AUDIO_PAGE_MAX * AUDIO_DMA_SIZE_MAX);
+	return 0;
 }
 
 static void tw686x_audio_dma_free(struct tw686x_dev *dev,