In radeon_add_common_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: Ma Ke <make_ruc2021@xxxxxxx> --- drivers/gpu/drm/radeon/radeon_connectors.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index d2f02c3dfce2..9f7d8ab980e6 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -520,6 +520,8 @@ static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_conn continue; 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); } } -- 2.37.2
