On Tue, Jan 9, 2024 at 4:47 AM Nícolas F. R. A. Prado nfraprado@collabora.com wrote:
Following commit 13f58267cda3 ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()"), the dai_name field is only populated for dummy components after the card is registered. This causes a null pointer dereference in the mt8192-mt6359 sound card driver's probe function when searching for a dai_name among all the card's dai links.
Verify that the dai_name is non-null before passing it to strcmp. While at it, also check that there's at least one codec.
Reported-by: "kernelci.org bot" bot@kernelci.org Closes: https://linux.kernelci.org/test/case/id/6582cd6d992645c680e13478/ Fixes: 13f58267cda3 ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()") Signed-off-by: Nícolas F. R. A. Prado nfraprado@collabora.com
Reviewed-by: Chen-Yu Tsai wenst@chromium.org Tested-by: Chen-Yu Tsai wenst@chromium.org
Audio now works again on my MT8192 Hayato.