snd_pcm_lib_preallocate_pages() and co always succeed, so the error
check is simply redundant.  Drop it.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
                        &snd_aicapcm_playback_ops);
        /* Allocate the DMA buffers */
-       err =
-           snd_pcm_lib_preallocate_pages_for_all(pcm,
-                                                 SNDRV_DMA_TYPE_CONTINUOUS,
-                                                 snd_dma_continuous_data
-                                                 (GFP_KERNEL),
-                                                 AICA_BUFFER_SIZE,
-                                                 AICA_BUFFER_SIZE);
-       return err;
+       snd_pcm_lib_preallocate_pages_for_all(pcm,
+                                             SNDRV_DMA_TYPE_CONTINUOUS,
+                                             snd_dma_continuous_data(GFP_KERNEL),
+                                             AICA_BUFFER_SIZE,
+                                             AICA_BUFFER_SIZE);
+       return 0;
 }
 
 /* Mixer controls */