diff options
| author | Gaghik Khachatrian <gaghik.khachatrian@amd.com> | 2026-04-23 05:12:25 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-05-05 16:56:53 +0300 |
| commit | 531fd5766d5c5810ea3ee3b4e7bd8c300f02fa8a (patch) | |
| tree | 7891f4d8012f271b017391b3a0a8dd19100209c8 | |
| parent | d05a1c347ca54c02dbcf6a6d32f6b2d9998ceae4 (diff) | |
| download | linux-531fd5766d5c5810ea3ee3b4e7bd8c300f02fa8a.tar.xz | |
drm/amd/display: fix buffer overruns warnings
[Why & How]
Fixes a warning by adding bounds checks and index validation in dml2_0
sources to address static analysis warnings. Ensures safe array access and
prevents out-of-bounds reads by validating indices before use, improving
robustness and reliability in the affected files.
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Gaghik Khachatrian <gaghik.khachatrian@amd.com>
Signed-off-by: James Lin <pinglei.lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_mcg/dml2_mcg_dcn42.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_mcg/dml2_mcg_dcn42.c b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_mcg/dml2_mcg_dcn42.c index 3eaeff39ee79..ef8b75fed9a3 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_mcg/dml2_mcg_dcn42.c +++ b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_mcg/dml2_mcg_dcn42.c @@ -22,7 +22,7 @@ static bool build_min_clk_table_coarse_grained(const struct dml2_soc_bb *soc_bb, min_table->dram_bw_table.entries[i].pre_derate_dram_bw_kbps = uclk_to_dram_bw_kbps(soc_bb->clk_table.uclk.clk_values_khz[i], &soc_bb->clk_table.dram_config, soc_bb->clk_table.wck_ratio.clk_values_khz[i]); min_table->dram_bw_table.entries[i].min_uclk_khz = soc_bb->clk_table.uclk.clk_values_khz[i]; - } else { + } else if (soc_bb->clk_table.uclk.num_clk_values > 0) { min_table->dram_bw_table.entries[i].pre_derate_dram_bw_kbps = min_table->dram_bw_table.entries[soc_bb->clk_table.uclk.num_clk_values - 1].pre_derate_dram_bw_kbps; min_table->dram_bw_table.entries[i].min_uclk_khz = soc_bb->clk_table.uclk.clk_values_khz[soc_bb->clk_table.uclk.num_clk_values - 1]; } |