ASoC: imx-sgtl5000: return E_PROBE_DEFER if ssi/codec not found

If the ssi or codec drivers are not loaded (for instance, because spi or i2c
bus drivers are not loaded), returning -EINVAL will for people to unload and
then reload the module to get sound working. Returning E_PROBE_DEFER will
mitigate this.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 7a8bc12..3f726e4 100644 (file)
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -113,13 +113,13 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
        ssi_pdev = of_find_device_by_node(ssi_np);
        if (!ssi_pdev) {
                dev_err(&pdev->dev, "failed to find SSI platform device\n");
-               ret = -EINVAL;
+               ret = -EPROBE_DEFER;
                goto fail;
        }
        codec_dev = of_find_i2c_device_by_node(codec_np);
        if (!codec_dev) {
                dev_err(&pdev->dev, "failed to find codec platform device\n");
-               return -EINVAL;
+               return -EPROBE_DEFER;
        }
 
        data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);