This is a note to let you know that I've just added the patch titled
ASoC: amd: Adjust error handling in case of absent codec device
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-amd-adjust-error-handling-in-case-of-absent-cod.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 c9c130fcc6db1a13ffffc9f8957031ff44af6488
Author: Aleksandr Mishin <amishin@xxxxxxxxxx>
Date: Wed Jul 3 22:10:07 2024 +0300
ASoC: amd: Adjust error handling in case of absent codec device
[ Upstream commit 5080808c3339de2220c602ab7c7fa23dc6c1a5a3 ]
acpi_get_first_physical_node() can return NULL in several cases (no such
device, ACPI table error, reference count drop to 0, etc).
Existing check just emit error message, but doesn't perform return.
Then this NULL pointer is passed to devm_acpi_dev_add_driver_gpios()
where it is dereferenced.
Adjust this error handling by adding error code return.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 02527c3f2300 ("ASoC: amd: add Machine driver for Jadeite platform")
Signed-off-by: Aleksandr Mishin <amishin@xxxxxxxxxx>
Link: https://patch.msgid.link/20240703191007.8524-1-amishin@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/amd/acp-es8336.c b/sound/soc/amd/acp-es8336.c
index 89499542c803f..f91a3c13ac235 100644
--- a/sound/soc/amd/acp-es8336.c
+++ b/sound/soc/amd/acp-es8336.c
@@ -203,8 +203,10 @@ static int st_es8336_late_probe(struct snd_soc_card *card)
codec_dev = acpi_get_first_physical_node(adev);
acpi_dev_put(adev);
- if (!codec_dev)
+ if (!codec_dev) {
dev_err(card->dev, "can not find codec dev\n");
+ return -ENODEV;
+ }
ret = devm_acpi_dev_add_driver_gpios(codec_dev, acpi_es8336_gpios);
if (ret)
