From: Akshu Agrawal <akshu.agrawal@amd.com>
To: unlisted-recipients:; (no To-header on input)
Cc: djkurtz@chromium.org, akshu.agrawal@amd.com,
Alexander.Deucher@amd.com, Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
"Mukunda, Vijendar" <Vijendar.Mukunda@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Guenter Roeck <linux@roeck-us.net>,
alsa-devel@alsa-project.org (moderated list:SOUND - SOC LAYER /
DYNAMIC AUDIO POWER MANAGEM...),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/2] ASoC: AMD: Add NULL pointer check
Date: Thu, 7 Jun 2018 14:48:43 +0800 [thread overview]
Message-ID: <1528354129-5023-1-git-send-email-akshu.agrawal@amd.com> (raw)
Fix crash in those platforms whose machine driver does not expose
platform_info. For those platforms we rely on default value and
select I2SSP channel.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
---
sound/soc/amd/acp-pcm-dma.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 7720384..1458b50 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -773,7 +773,8 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
if (WARN_ON(!rtd))
return -EINVAL;
- rtd->i2s_instance = pinfo->i2s_instance;
+ if (pinfo)
+ rtd->i2s_instance = pinfo->i2s_instance;
if (adata->asic_type == CHIP_STONEY) {
val = acp_reg_read(adata->acp_mmio,
mmACP_I2S_16BIT_RESOLUTION_EN);
--
1.9.1
next reply other threads:[~2018-06-07 6:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 6:48 Akshu Agrawal [this message]
2018-06-07 6:48 ` [v2, 2/2] ASoC: AMD: Configure channel 1 or channel 0 for capture Akshu Agrawal
2018-06-20 14:02 ` Mark Brown
2018-06-21 4:48 ` Agrawal, Akshu
2018-06-22 14:50 ` Applied "ASoC: AMD: Configure channel 1 or channel 0 for capture" to the asoc tree Mark Brown
2018-06-18 12:00 ` Applied "ASoC: AMD: Add NULL pointer check" " Mark Brown
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