This is a note to let you know that I've just added the patch titled
ASoC: mediatek: sof-common: Add NULL check for normal_link string
to the 6.1-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-mediatek-sof-common-add-null-check-for-normal_l.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 75906167f0d7e039be5f3b84b9aad28676a0d8f4
Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Date: Thu Jan 11 11:52:26 2024 +0100
ASoC: mediatek: sof-common: Add NULL check for normal_link string
[ Upstream commit e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed ]
It's not granted that all entries of struct sof_conn_stream declare
a `normal_link` (a non-SOF, direct link) string, and this is the case
for SoCs that support only SOF paths (hence do not support both direct
and SOF usecases).
For example, in the case of MT8188 there is no normal_link string in
any of the sof_conn_stream entries and there will be more drivers
doing that in the future.
To avoid possible NULL pointer KPs, add a NULL check for `normal_link`.
Fixes: 0caf1120c583 ("ASoC: mediatek: mt8195: extract SOF common code")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Link: https://msgid.link/r/20240111105226.117603-1-angelogioacchino.delregno@xxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/mediatek/common/mtk-dsp-sof-common.c b/sound/soc/mediatek/common/mtk-dsp-sof-common.c
index 8b1b623207be..d4d1d3b9572a 100644
--- a/sound/soc/mediatek/common/mtk-dsp-sof-common.c
+++ b/sound/soc/mediatek/common/mtk-dsp-sof-common.c
@@ -24,7 +24,7 @@ int mtk_sof_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_dai_link *sof_dai_link = NULL;
const struct sof_conn_stream *conn = &sof_priv->conn_streams[i];
- if (strcmp(rtd->dai_link->name, conn->normal_link))
+ if (conn->normal_link && strcmp(rtd->dai_link->name, conn->normal_link))
continue;
for_each_card_rtds(card, runtime) {
