The patch
ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From 80ba2669ec8c3e6517aa935001f6cb8809bf3df4 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Date: Thu, 4 Jun 2015 16:04:14 +0300
Subject: [PATCH] ASoC: tas2552: Fix kernel crash when the codec is loaded but
not part of a card
If the card is not part of any card the tas_data->codec is NULL since it is
set only during snd_soc_codec_driver.probe, which is not yet called.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
sound/soc/codecs/tas2552.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index ff82f46ba504..df89947f1032 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -120,6 +120,9 @@ static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown)
{
u8 cfg1_reg;
+ if (!tas_data->codec)
+ return;
+
if (sw_shutdown)
cfg1_reg = 0;
else
--
2.1.4
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