diff --git a/sound/soc/tegra/tegra_das.c b/sound/soc/tegra/tegra_das.c
index 9f24ef73f2cb3e689e21f0134197e41b8b0e5d7a..3b55a44146afc419c99fedd7d834dd826bd738e8 100644
--- a/sound/soc/tegra/tegra_das.c
+++ b/sound/soc/tegra/tegra_das.c
@@ -212,7 +212,7 @@ static int __devinit tegra_das_probe(struct platform_device *pdev)
 	release_mem_region(res->start, resource_size(res));
 err_free:
 	kfree(das);
-	das = 0;
+	das = NULL;
 exit:
 	return ret;
 }
@@ -234,7 +234,7 @@ static int __devexit tegra_das_remove(struct platform_device *pdev)
 	release_mem_region(res->start, resource_size(res));
 
 	kfree(das);
-	das = 0;
+	das = NULL;
 
 	return 0;
 }
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index c7cfd96e991ef268bd7af9a43230f8197c1e617c..436def1dfa39fee8b988fcbab0f14a74f277a438 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -367,7 +367,7 @@ static void tegra_pcm_free(struct snd_pcm *pcm)
 	tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK);
 }
 
-struct snd_soc_platform_driver tegra_pcm_platform = {
+static struct snd_soc_platform_driver tegra_pcm_platform = {
 	.ops		= &tegra_pcm_ops,
 	.pcm_new	= tegra_pcm_new,
 	.pcm_free	= tegra_pcm_free,