ASoC: davinci-mcasp: Fix an error handling path in 'davinci_mcasp_probe()'

All error handling paths in this function 'goto err' except this one.

If one of the 2 previous memory allocations fails, we should go through
the existing error handling path. Otherwise there is an unbalanced
pm_runtime_enable()/pm_runtime_disable().

Fixes: dd55ff83 ("ASoC: davinci-mcasp: Add set_tdm_slots() support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/davinci/davinci-mcasp.c

@@ -1982,8 +1982,10 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 			     GFP_KERNEL);
 
 	if (!mcasp->chconstr[SNDRV_PCM_STREAM_PLAYBACK].list ||
-	    !mcasp->chconstr[SNDRV_PCM_STREAM_CAPTURE].list)
-		return -ENOMEM;
+	    !mcasp->chconstr[SNDRV_PCM_STREAM_CAPTURE].list) {
+		ret = -ENOMEM;
+		goto err;
+	}
 
 	ret = davinci_mcasp_set_ch_constraints(mcasp);
 	if (ret)