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drm/amd/display: Set initial value to a divider

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[why/how]
Due to compiler optimization the values would be
passed to the division function uninitialized
causing a div by zero. Initialize the numerator
and denominator to 0 and 1 to prevent division
by zero.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mikita Lipski 2020-08-26 08:00:42 -04:00 committed by Alex Deucher
parent 712343cd21
commit 8532467cc9
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -2891,8 +2891,8 @@ static struct fixed31_32 get_pbn_per_slot(struct dc_stream_state *stream)
static struct fixed31_32 get_pbn_from_bw_in_kbps(uint64_t kbps)
{
struct fixed31_32 peak_kbps;
uint32_t numerator;
uint32_t denominator;
uint32_t numerator = 0;
uint32_t denominator = 1;
/*
* margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006