The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 747df19747bc9752cd40b9cce761e17a033aa5c2 Mon Sep 17 00:00:00 2001

From: Daniel Mack daniel@zonque.org Date: Thu, 11 Oct 2018 20:32:05 +0200 Subject: [PATCH] ASoC: sta32x: set ->component pointer in private struct

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

diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index d5035f2f2b2b..ce508b4cc85c 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -879,6 +879,9 @@ static int sta32x_probe(struct snd_soc_component *component) 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) {