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SubjectApplied "ASoC: qcom: common: Fix NULL pointer in of parser" to the asoc tree
The patch

ASoC: qcom: common: Fix NULL pointer in of parser

has been applied to the asoc tree at for-5.3

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From 16395ceee11f8f8af764bac76adc20a43ba1a153 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <>
Date: Mon, 17 Jun 2019 22:28:13 -0700
Subject: [PATCH] ASoC: qcom: common: Fix NULL pointer in of parser

A snd_soc_dai_link_component is allocated and associated with the first
link, so when the code tries to assign the of_node of the second link's
"cpu" member it dereferences a NULL pointer.

Fix this by moving the allocation and assignement of
snd_soc_dai_link_components into the loop, giving us one pair per link.

Fixes: 1e36ea360ab9 ("ASoC: qcom: common: use modern dai_link style")
Signed-off-by: Bjorn Andersson <>
Acked-by: Srinivas Kandagatla <>
Signed-off-by: Mark Brown <>
sound/soc/qcom/common.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
index c7a878507220..97488b5cc515 100644
--- a/sound/soc/qcom/common.c
+++ b/sound/soc/qcom/common.c
@@ -42,17 +42,17 @@ int qcom_snd_parse_of(struct snd_soc_card *card)
card->num_links = num_links;
link = card->dai_link;

- dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
- if (!dlc)
- return -ENOMEM;
+ for_each_child_of_node(dev->of_node, np) {
+ dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
+ if (!dlc)
+ return -ENOMEM;

- link->cpus = &dlc[0];
- link->platforms = &dlc[1];
+ link->cpus = &dlc[0];
+ link->platforms = &dlc[1];

- link->num_cpus = 1;
- link->num_platforms = 1;
+ link->num_cpus = 1;
+ link->num_platforms = 1;

- for_each_child_of_node(dev->of_node, np) {
cpu = of_get_child_by_name(np, "cpu");
platform = of_get_child_by_name(np, "platform");
codec = of_get_child_by_name(np, "codec");
 \ /
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