Re: [PATCH] ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi()

On Tue, 02 Dec 2025 11:13:36 +0100, Denis Arefev wrote:

The acpi_get_first_physical_node() function can return NULL, in which case the get_device() function also returns NULL, but this value is then dereferenced without checking,so add a check to prevent a crash.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 7b2f3eb492da ("ALSA: hda: cs35l41: Add support for CS35L41 in HDA systems") Cc: stable@vger.kernel.org Signed-off-by: Denis Arefev arefev@swemel.ru

Applied now. Thanks.

Takashi