[PATCH 09/12] drm/amd/display: Array offset used before range check

Aurabindo Pillai aurabindo.pillai at amd.com
Wed Aug 20 20:19:59 UTC 2025


From: Clay King <clayking at amd.com>

Consolidating multiple CodeQL Fixes for alerts with rule id: cpp/offset-use-before-range-check

Reviewed-by: Joshua Aberback <joshua.aberback at amd.com>
Signed-off-by: Clay King <clayking at amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c           | 2 +-
 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c
index 8da97a96b1ce..8d7c59ec701d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn302/dcn302_fpu.c
@@ -280,7 +280,7 @@ void dcn302_fpu_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_p
 		j = 0;
 		/* create the final dcfclk and uclk table */
 		while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
-			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
 				dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
 				dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
 			} else {
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c
index e968870a4b81..b5d3fd4c3694 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn303/dcn303_fpu.c
@@ -285,7 +285,7 @@ void dcn303_fpu_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_p
 		j = 0;
 		/* create the final dcfclk and uclk table */
 		while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
-			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
 				dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
 				dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
 			} else {
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 7cd7bddea423..18388fb00be8 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -3229,7 +3229,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
 			j = 0;
 			// create the final dcfclk and uclk table
 			while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
-				if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+				if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
 					dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
 					dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
 				} else {
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index 8839faf42207..e0a1dc89ce43 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -779,7 +779,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
 		j = 0;
 		// create the final dcfclk and uclk table
 		while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
-			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
 				dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
 				dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
 			} else {
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c
index 895349d9ca07..201ed863b69e 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c
@@ -2192,7 +2192,7 @@ void dcn30_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params
 		j = 0;
 		// create the final dcfclk and uclk table
 		while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
-			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+			if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
 				dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
 				dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
 			} else {
-- 
2.50.1



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