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From: Wayne Lin <Wayne.Lin@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <Harry.Wentland@amd.com>, <Sunpeng.Li@amd.com>,
	<Rodrigo.Siqueira@amd.com>, <Aurabindo.Pillai@amd.com>,
	<roman.li@amd.com>, <wayne.lin@amd.com>,
	<agustin.gutierrez@amd.com>, <chiahsuan.chung@amd.com>,
	<jerry.zuo@amd.com>, <zaeem.mohamed@amd.com>,
	Chris Park <chris.park@amd.com>, Leo Ma <hanghong.ma@amd.com>
Subject: [PATCH 18/22] drm/amd/display: Address coverity change
Date: Tue, 30 Jul 2024 15:18:39 +0800	[thread overview]
Message-ID: <20240730071843.880430-19-Wayne.Lin@amd.com> (raw)
In-Reply-To: <20240730071843.880430-1-Wayne.Lin@amd.com>

From: Chris Park <chris.park@amd.com>

[Why]
Coverity picks up a defect with regards to array underflow.

[How]
Address coverity issue as recommended.

Reviewed-by: Leo Ma <hanghong.ma@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
---
 .../gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
index cce425dd62d2..01ea3a31e54d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
@@ -517,10 +517,12 @@ static void dcn401_update_clocks_update_dtb_dto(struct clk_mgr_internal *clk_mgr
 		if (!use_hpo_encoder)
 			continue;
 
-		otg_master->clock_source->funcs->program_pix_clk(
+		if (otg_master->stream_res.pix_clk_params.controller_id > CONTROLLER_ID_UNDEFINED)
+			otg_master->clock_source->funcs->program_pix_clk(
 				otg_master->clock_source,
 				&otg_master->stream_res.pix_clk_params,
-				dccg->ctx->dc->link_srv->dp_get_encoding_format(&otg_master->link_config.dp_link_settings),
+				dccg->ctx->dc->link_srv->dp_get_encoding_format(
+					&otg_master->link_config.dp_link_settings),
 				&otg_master->pll_settings);
 	}
 }
-- 
2.37.3


  parent reply	other threads:[~2024-07-30  7:22 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-30  7:18 [PATCH 00/22] DC Patches July 29, 2024 Wayne Lin
2024-07-30  7:18 ` [PATCH 01/22] drm/amd/display: Add missing DCN314 to the DML Makefile Wayne Lin
2024-07-30  7:18 ` [PATCH 02/22] drm/amd/display: Cleanup dml2 and dc/resource Makefile Wayne Lin
2024-07-30  7:18 ` [PATCH 03/22] drm/amd/display: Remove useless defines Wayne Lin
2024-07-30  7:18 ` [PATCH 04/22] drm/amd/display: Remove unused fields from dmub_cmd_update_dirty_rect_data Wayne Lin
2024-07-30  7:18 ` [PATCH 05/22] drm/amd/display: Remove unused fields from dc_caps Wayne Lin
2024-07-30  7:18 ` [PATCH 06/22] drm/amd/display: Add missing program DET segment call to pipe init Wayne Lin
2024-07-30  7:18 ` [PATCH 07/22] drm/amd/display: Fix overlay with pre-blend color processing Wayne Lin
2024-07-30  7:18 ` [PATCH 08/22] drm/amd/display: Add stream and char control callback Wayne Lin
2024-07-30  7:18 ` [PATCH 09/22] drm/amd/display: fix a UBSAN warning in DML2.1 Wayne Lin
2024-07-30  7:18 ` [PATCH 10/22] drm/amd/display: Print Pcon FRL Link BW in Debug Message Wayne Lin
2024-07-30  7:18 ` [PATCH 11/22] drm/amd/display: Disable SubVP if Hardware Rotation is Used Wayne Lin
2024-07-30  7:18 ` [PATCH 12/22] drm/amd/display: Assume 32 bpp cursor in DML21 Wayne Lin
2024-07-30  7:18 ` [PATCH 13/22] drm/amd/display: Force enable 3DLUT DMA check for dcn401 in DML Wayne Lin
2024-07-30  7:18 ` [PATCH 14/22] drm/amd/display: Re-enable panel replay feature Wayne Lin
2024-07-30  7:18 ` [PATCH 15/22] drm/amd/display: Add clock control callbacks Wayne Lin
2024-07-30  7:18 ` [PATCH 16/22] drm/amd/display: skip crtc power down when ips switch Wayne Lin
2024-07-30  7:18 ` [PATCH 17/22] drm/amd/display: Skip Recompute DSC Params if no Stream on Link Wayne Lin
2024-07-30  7:18 ` Wayne Lin [this message]
2024-07-30  7:18 ` [PATCH 19/22] drm/amd/display: Add clock control callbacks Wayne Lin
2024-07-30  7:18 ` [PATCH 20/22] drm/amd/display: Revert Avoid overflow assignment Wayne Lin
2024-07-30  7:18 ` [PATCH 21/22] drm/amd/display: Add DML2.1 option to disable DRR clamped P-State Strategies Wayne Lin
2024-07-30  7:18 ` [PATCH 22/22] drm/amd/display: 3.2.295 Wayne Lin
2024-08-06 13:10 ` [PATCH 00/22] DC Patches July 29, 2024 Wheeler, Daniel

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