drm/amd/display: Added local_sink null check before access (3e1974cf) · Commits · 戴 / test

[Why & How] Need to check if local_sink is NULL before accessing. Signed-off-by:

drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -167,7 +167,8 @@ bool edp_receiver_ready_T9(struct dc_link *link)
		} while (++tries < 50);
		}

		if (link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off > 0)
		if (link->local_sink &&
		link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off > 0)
		udelay(link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off * 1000);

		return result;
		@@ -201,7 +202,8 @@ bool edp_receiver_ready_T7(struct dc_link *link)
		} while (time_taken_in_ns < 50 * 1000000); //MAx T7 is 50ms
		}

		if (link->local_sink->edid_caps.panel_patch.extra_t7_ms > 0)
		if (link->local_sink &&
		link->local_sink->edid_caps.panel_patch.extra_t7_ms > 0)
		udelay(link->local_sink->edid_caps.panel_patch.extra_t7_ms * 1000);

		return result;