[PATCH 4.18 215/350] ASoC: sta32x: set ->component pointer in private struct

Greg Kroah-Hartman
2018-11-11T22:30:52Z

From: Daniel Mack <daniel@zonque.org>

commit 747df19747bc9752cd40b9cce761e17a033aa5c2 upstream.

The ESD watchdog code in sta32x_watchdog() dereferences the pointer
which is never assigned.

This is a regression from a1be4cead9b950 ("ASoC: sta32x: Convert to direct
regmap API usage.") which went unnoticed since nobody seems to use that ESD
workaround.

Fixes: a1be4cead9b950 ("ASoC: sta32x: Convert to direct regmap API usage.")
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/codecs/sta32x.c | 3 +++
1 file changed, 3 insertions(+)

--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -879,6 +879,9 @@ static int sta32x_probe(struct snd_soc_c
struct sta32x_priv *sta32x = snd_soc_component_get_drvdata(component);
struct sta32x_platform_data *pdata = sta32x->pdata;
int i, ret = 0, thermal = 0;
+
+ sta32x->component = component;
+
ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
if (ret != 0) {