Commit dcafc45d authored Jan 02, 2017 by Neil Armstrong

drm/meson: Fix plane atomic check when no crtc for the plane



When no CRTC is associated with the plane, the meson_plane_atomic_check()
call breaks the kernel with an Oops.

Fixes: bbbe775e ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

parent 0c744ea4

drivers/gpu/drm/meson/meson_plane.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -51,6 +51,9 @@ static int meson_plane_atomic_check(struct drm_plane *plane,
		struct drm_crtc_state *crtc_state;
		struct drm_rect clip = { 0, };

		if (!state->crtc)
		return 0;

		crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
		if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);