drm/amdgpu: fix crash in acp_hw_fini

On CZ/ST systems with AZ rather than ACP audio, we need to bail
early in hw_fini since there is nothing to do.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=98276



Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

parent 020a0bbc

drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -395,9 +395,12 @@ static int acp_hw_fini(void *handle)
		{
		int i, ret;
		struct device *dev;

		struct amdgpu_device adev = (struct amdgpu_device )handle;

		/* return early if no ACP */
		if (!adev->acp.acp_genpd)
		return 0;

		for (i = 0; i < ACP_DEVS ; i++) {
		dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
		ret = pm_genpd_remove_device(&adev->acp.acp_genpd->gpd, dev);