From: Alex Hung <alex.h...@amd.com>
[ Upstream commit ea79068d4073bf303f8203f2625af7d9185a1bc6 ]
[WHAT & HOW]
A denominator cannot be 0, and is checked before used.
This fixes 2 DIVIDE_BY_ZERO issues reported by Coverity.
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Signed-off-by: Jerry Zuo <jerry....@amd.com>
Signed-off-by: Alex Hung <alex.h...@amd.com>
Tested-by: Daniel Wheeler <daniel.whee...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Cliff Liu <donghua....@windriver.com>
Signed-off-by: He Zhe <zhe...@windriver.com>
---
Verified the build test.
---
drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
index e78954514e3e..958170fbfece 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
@@ -1772,7 +1772,7 @@ static int dcn315_populate_dml_pipes_from_context(
bool split_required =
pipe->stream->timing.pix_clk_100hz >=
dcn_get_max_non_odm_pix_rate_100hz(&dc->dml.soc)
|| (pipe->plane_state &&
pipe->plane_state->src_rect.width > 5120);
- if (remaining_det_segs > MIN_RESERVED_DET_SEGS)
+ if (remaining_det_segs > MIN_RESERVED_DET_SEGS
&& crb_pipes != 0)
pipes[pipe_cnt].pipe.src.det_size_override += (remaining_det_segs -
MIN_RESERVED_DET_SEGS) / crb_pipes +
(crb_idx <
(remaining_det_segs - MIN_RESERVED_DET_SEGS) % crb_pipes ? 1 : 0);
if (pipes[pipe_cnt].pipe.src.det_size_override
> 2 * DCN3_15_MAX_DET_SEGS) {
--
2.34.1
