Commit abebfed2 authored by Chenyuan Yang's avatar Chenyuan Yang Committed by Rob Clark
Browse files

drm/msm/dpu: Add a null ptr check for dpu_encoder_needs_modeset 



The drm_atomic_get_new_connector_state() can return NULL if the
connector is not part of the atomic state. Add a check to prevent
a NULL pointer dereference.

This follows the same pattern used in dpu_encoder_update_topology()
within the same file, which checks for NULL before using conn_state.

Signed-off-by: default avatarChenyuan Yang <chenyuan0y@gmail.com>
Fixes: 1ce69c26 ("drm/msm/dpu: move resource allocation to CRTC")
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/665188/


Signed-off-by: default avatarRob Clark <robin.clark@oss.qualcomm.com>
parent 7ab3b757

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c

+2 −0
Original line number Diff line number Diff line
@@ -730,6 +730,8 @@ bool dpu_encoder_needs_modeset(struct drm_encoder *drm_enc, struct drm_atomic_st 
		return false;



	conn_state = drm_atomic_get_new_connector_state(state, connector);

	if (!conn_state)

		return false;



	/**

	 * These checks are duplicated from dpu_encoder_update_topology() since