ASoC: soc-generic-dmaengine-pcm: Fix error handling

When dmaengine_pcm_request_chan_of() fails it should release
the previously acquired resources, which in this case is to
call kfree(pcm), so jump to the correct point in the error
path.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/soc-generic-dmaengine-pcm.c

@@ -450,7 +450,7 @@ int snd_dmaengine_pcm_register(struct device *dev,
 
 	ret = dmaengine_pcm_request_chan_of(pcm, dev, config);
 	if (ret)
-		goto err_free_dma;
+		goto err_free_pcm;
 
 	ret = snd_soc_add_component(dev, &pcm->component,
 				    &dmaengine_pcm_component, NULL, 0);
@@ -461,6 +461,7 @@ int snd_dmaengine_pcm_register(struct device *dev,
 
 err_free_dma:
 	dmaengine_pcm_release_chan(pcm);
+err_free_pcm:
 	kfree(pcm);
 	return ret;
 }