ASoC: fsl-asoc-card: Fix build warning for maybe-uninitialized

When build fsl-asoc-card as module, there is following error:

sound/soc/fsl/fsl-asoc-card.c: In function 'fsl_asoc_card_probe':
>> sound/soc/fsl/fsl-asoc-card.c:547:13: warning: 'asrc_np' may be used uninitialized in this function [-Wmaybe-uninitialized]
     of_node_put(asrc_np);
                ^

vim +/asrc_np +547 sound/soc/fsl/fsl-asoc-card.c

   531                  if (width == 24)
   532                          priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
   533                  else
   534                          priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
   535          }
   536
   537          /* Finish card registering */
   538          platform_set_drvdata(pdev, priv);
   539          snd_soc_card_set_drvdata(&priv->card, priv);
   540
   541          ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
   542          if (ret)
   543                  dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
   544
   545  fail:
   546          of_node_put(codec_np);
 > 547          of_node_put(asrc_np);
   548          of_node_put(cpu_np);
   549
   550          return ret;
   551  }
   552
   553  static const struct of_device_id fsl_asoc_card_dt_ids[] = {
   554          { .compatible = "fsl,imx-audio-cs42888", },
   555          { .compatible = "fsl,imx-audio-sgtl5000", },

Add 'asrc_fail' branch for error jump after asrc_np initialized.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index cf3f1f47f1e8b52213b592a2dd09dab8c3f39bde..007c772f3cefc7bc7e41d07f4199e917e754718e 100644 (file)
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -469,7 +469,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
                ret = fsl_asoc_card_audmux_init(np, priv);
                if (ret) {
                        dev_err(&pdev->dev, "failed to init audmux\n");
-                       goto fail;
+                       goto asrc_fail;
                }
        } else if (strstr(cpu_np->name, "esai")) {
                priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
@@ -518,14 +518,14 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
                if (ret) {
                        dev_err(&pdev->dev, "failed to get output rate\n");
                        ret = -EINVAL;
-                       goto fail;
+                       goto asrc_fail;
                }
 
                ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
                if (ret) {
                        dev_err(&pdev->dev, "failed to get output rate\n");
                        ret = -EINVAL;
-                       goto fail;
+                       goto asrc_fail;
                }
 
                if (width == 24)
@@ -542,9 +542,10 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
        if (ret)
                dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
 
+asrc_fail:
+       of_node_put(asrc_np);
 fail:
        of_node_put(codec_np);
-       of_node_put(asrc_np);
        of_node_put(cpu_np);
 
        return ret;