[PATCH 4.4 16/18] ASoC: imx-spdif: Fix crash on suspend

Greg Kroah-Hartman
2020-05-04T17:59:20Z

From: Lars-Peter Clausen <lars@metafoo.de>

commit 9954859185c6e8359e71121037b627f1e294057d upstream.

When registering a ASoC card the driver data of the parent device is set to
point to the card. This driver data is used in the
snd_soc_suspend()/resume() callbacks.

The imx-spdif driver overwrites the driver data with custom data which
causes snd_soc_suspend() to crash. Since the custom driver is not used
anywhere simply deleting the line which sets the custom driver data fixes
the issue.

Fixes: 43ac946922b3 ("ASoC: imx-spdif: add snd_soc_pm_ops for spdif machine driver")
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/fsl/imx-spdif.c | 2 --
1 file changed, 2 deletions(-)

--- a/sound/soc/fsl/imx-spdif.c
+++ b/sound/soc/fsl/imx-spdif.c
@@ -72,8 +72,6 @@ static int imx_spdif_audio_probe(struct
goto end;
}

- platform_set_drvdata(pdev, data);
-
end:
of_node_put(spdif_np);