Patch "ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card" has been added to the 4.1-stable tree

Patch "ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card" has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     asoc-tas2552-fix-kernel-crash-when-the-codec-is-loaded-but-not-part-of-a-card.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 80ba2669ec8c3e6517aa935001f6cb8809bf3df4 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Thu, 4 Jun 2015 16:04:14 +0300
Subject: ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card

From: Peter Ujfalusi <peter.ujfalusi@ti.com>

commit 80ba2669ec8c3e6517aa935001f6cb8809bf3df4 upstream.

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@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/codecs/tas2552.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -120,6 +120,9 @@ static void tas2552_sw_shutdown(struct t
 {
 	u8 cfg1_reg;
 
+	if (!tas_data->codec)
+		return;
+
 	if (sw_shutdown)
 		cfg1_reg = 0;
 	else


Patches currently in stable-queue which might be from peter.ujfalusi@ti.com are

queue-4.1/asoc-tas2552-fix-kernel-crash-caused-by-wrong-kcontrol-entry.patch
queue-4.1/asoc-omap-fix-up-snd_omap_soc_omap_abe_twl6040-dependency-again.patch
queue-4.1/asoc-tas2552-fix-kernel-crash-when-the-codec-is-loaded-but-not-part-of-a-card.patch