MLK-10055-1: ASoC: imx-cs42888: when codec probe failed, alsa return RETRY error.

If there is no codec device, the machine driver will not register the
card. then alsa will not return RETRY error. update the error handling
for machine driver.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
(cherry picked from commit 01ffd8e5e828d20214a196e64b981c9fd94c913e)

diff --git a/sound/soc/fsl/imx-cs42888.c b/sound/soc/fsl/imx-cs42888.c
index 68eaaaa..4153d39 100644 (file)
--- a/sound/soc/fsl/imx-cs42888.c
+++ b/sound/soc/fsl/imx-cs42888.c
@@ -236,7 +236,7 @@ static int imx_cs42888_probe(struct platform_device *pdev)
                goto fail;
        }
        codec_dev = of_find_i2c_device_by_node(codec_np);
-       if (!codec_dev) {
+       if (!codec_dev || !codec_dev->dev.driver) {
                dev_err(&pdev->dev, "failed to find codec platform device\n");
                ret = -EINVAL;
                goto fail;