From: Hersen Wu <hersenxs.wu@amd.com>
Date: Fri, 26 Apr 2024 15:13:47 +0000 (-0400)
Subject: drm/amd/display: Add otg_master NULL check within resource_log_pipe_topology_update
X-Git-Tag: io_uring-6.11-20240722~49^2~25^2~358
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=871cd9d881fa791d3f82885000713de07041c0ae;p=linux-2.6-block.git

drm/amd/display: Add otg_master NULL check within resource_log_pipe_topology_update

[Why]
Coverity reports NULL_RETURN warning.

[How]
Add otg_master NULL check.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index dbcd34c6338b..a48afc307a4e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2329,6 +2329,9 @@ void resource_log_pipe_topology_update(struct dc *dc, struct dc_state *state)
 					state->stream_status[stream_idx].mall_stream_config.paired_stream);
 			otg_master = resource_get_otg_master_for_stream(
 					&state->res_ctx, state->streams[phantom_stream_idx]);
+			if (!otg_master)
+				continue;
+
 			resource_log_pipe_for_stream(dc, state, otg_master, stream_idx);
 		}
 	}