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drm/amd/display: Fix incorrect size calculation for loop in dcn401

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[WHY]
fe_clk_en and be_clk_sel have size of 4 but sizeof(fe_clk_en) has
byte size 16 which is lager than the array size.

[HOW]
Use ARRAY_SIZE for calculating size.

This fixes 2 OVERRUN issues reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung
2024-05-29 14:08:44 -06:00
committed by Alex Deucher
parent dd9d8c61cc
commit d281b77426
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c
+1 -1
View File
@@ -885,7 +885,7 @@ static uint8_t dccg401_get_other_enabled_symclk_fe(struct dccg *dccg, uint32_t s
/* for DPMST, this backend could be used by multiple front end.
only disable the backend if this stream_enc_ins is the last active stream enc connected to this back_end*/
uint8_t i;
for (i = 0; i != link_enc_inst && i < sizeof(fe_clk_en); i++) {
for (i = 0; i != link_enc_inst && i < ARRAY_SIZE(fe_clk_en); i++) {
if (fe_clk_en[i] && be_clk_sel[i] == link_enc_inst)
num_enabled_symclk_fe++;
}