From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
dmurphy@ti.com
Cc: alsa-devel@alsa-project.org
Subject: [PATCH 02/22] ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card
Date: Thu, 4 Jun 2015 15:22:26 +0300 [thread overview]
Message-ID: <1433420571-5421-3-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1433420571-5421-1-git-send-email-peter.ujfalusi@ti.com>
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>
---
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
--
2.4.2
next prev parent reply other threads:[~2015-06-04 12:23 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-04 12:22 [PATCH 00/22] ASoC: tas2552: Fixes, cleanups and improvements Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 01/22] ASoC: tas2552: Make the enable-gpio really optional Peter Ujfalusi
2015-06-04 12:22 ` Peter Ujfalusi [this message]
2015-06-04 12:22 ` [PATCH 03/22] ASoC: tas2552: Fix kernel crash caused by wrong kcontrol entry Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 04/22] ASoC: tas2552: Correct PDM configuration register bit definitions Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 05/22] ASoC: tas2552: Correct CFG1 " Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 06/22] ASoC: tas2552: Simplify the tas2552_mute function Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 07/22] ASoC: tas2552: Simplify and reverse the functionality of tas2552_sw_shutdown Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 08/22] ASoC: tas2552: Rename mclk parameter to pll_clkin to match with the datasheet Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 09/22] DT/sound: bindings header file for tas2552 codec Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 10/22] ASoC: tas2552: Add support for pll and pdm source clock selection Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 11/22] ASoC: tas2552: Correct dai format support Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 12/22] ASoC: tas2552: Correct and clean up data format and BCLK/WCLK direction Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 13/22] ASoC: tas2552: Add TDM support Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 14/22] ASoC: tas2552: Clean up the Digital - Analog DAPM route definition Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 15/22] ASoC: tas2552: Correct the Speaker Driver Playback Volume (PGA_GAIN) Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 16/22] ASoC: tas2552: Implement startup/stop sequence as per TRM Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 17/22] ASoC: tas2552: Add support for word length configuration Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 18/22] ASoC: tas2552: Configure the WCLK frequency based on the stream Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 19/22] ASoC: tas2552: Add control for selecting DIN source Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 19/23] ASoC: tas2552: Correct the PLL configuration Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 20/23] ASoC: tas2552: Add control for selecting DIN source Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 20/22] ASoC: tas2552: Correct Output Data register usage Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 21/22] ASoC: tas2552: Correct Boost Auto-Pass Through Control " Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 21/23] ASoC: tas2552: Correct Output Data " Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 22/22] ASoC: tas2552: Code, define alignment changes for uniformity Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 22/23] ASoC: tas2552: Correct Boost Auto-Pass Through Control register usage Peter Ujfalusi
2015-06-04 12:22 ` [PATCH 23/23] ASoC: tas2552: Code, define alignment changes for uniformity Peter Ujfalusi
2015-06-04 12:34 ` [PATCH 00/22] ASoC: tas2552: Fixes, cleanups and improvements Peter Ujfalusi
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