The patch

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

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.3

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

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Thanks, Mark

From 16395ceee11f8f8af764bac76adc20a43ba1a153 Mon Sep 17 00:00:00 2001

From: Bjorn Andersson bjorn.andersson@linaro.org 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 bjorn.andersson@linaro.org Acked-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown broonie@kernel.org --- 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");