Commit cd905115 authored by Ma Ke's avatar Ma Ke Committed by Alex Deucher
Browse files

drm/amdgpu/vkms: fix a possible null pointer dereference 



In amdgpu_vkms_conn_get_modes(), the return value of drm_cvt_mode()
is assigned to mode, which will lead to a NULL pointer dereference
on failure of drm_cvt_mode(). Add a check to avoid null pointer
dereference.

Signed-off-by: default avatarMa Ke <make_ruc2021@163.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 49c775b7

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

+2 −0
Original line number Diff line number Diff line
@@ -239,6 +239,8 @@ static int amdgpu_vkms_conn_get_modes(struct drm_connector *connector) 


	for (i = 0; i < ARRAY_SIZE(common_modes); i++) {

		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);

		if (!mode)

			continue;

		drm_mode_probed_add(connector, mode);

	}