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authorAlex Hung <alex.hung@amd.com>2024-05-29 23:08:44 +0300
committerAlex Deucher <alexander.deucher@amd.com>2024-06-14 23:17:17 +0300
commitd281b7742662e199fbba57fbd86c6c2bdd73104a (patch)
tree075a307fa75ccafd72209897c3bc2f065a7e792b
parentdd9d8c61ccff0e3409b0bff702444f3d31684e9e (diff)
downloadlinux-d281b7742662e199fbba57fbd86c6c2bdd73104a.tar.xz
drm/amd/display: Fix incorrect size calculation for loop in dcn401
[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>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c b/drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c
index dac31c4cf2a7..6a467c49b4a4 100644
--- a/drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c
@@ -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++;
}