Commit 780002b6 authored by Sunil Khatri's avatar Sunil Khatri Committed by Alex Deucher
Browse files

drm/amdgpu: validate wait_for_idle before function call 



Before making a function call to wait_for_idle,
validate the function pointer like we do in sw_init.

Signed-off-by: default avatarSunil Khatri <sunil.khatri@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 502d7630

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

+6 −3
Original line number Diff line number Diff line
@@ -2240,9 +2240,12 @@ int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev, 
		if (!adev->ip_blocks[i].status.valid)

			continue;

		if (adev->ip_blocks[i].version->type == block_type) {

			r = adev->ip_blocks[i].version->funcs->wait_for_idle(&adev->ip_blocks[i]);

			if (adev->ip_blocks[i].version->funcs->wait_for_idle) {

				r = adev->ip_blocks[i].version->funcs->wait_for_idle(

								&adev->ip_blocks[i]);

				if (r)

					return r;

			}

			break;

		}

	}