drm/amd/display: fail instead of div by zero/bugcheck

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[why]
If pbn_per_slot is 0, fail instead of dividing by zero and
bugchecking.

[how]
Check for zero divisor before division operation.

Signed-off-by: Ashley Thomas <Ashley.Thomas2@amd.com>
Reviewed-by: Wyatt Wood <Wyatt.Wood@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Ashley Thomas 2020-10-12 21:33:27 -07:00 • committed by Alex Deucher

parent 81e8da715c

commit 7dd4f4df99

3 changed files with 7 additions and 0 deletions

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2

drivers/gpu/drm/amd/display/dc/core/dc_debug.c

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4

drivers/gpu/drm/amd/display/dc/core/dc_link.c

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1

drivers/gpu/drm/amd/display/dc/inc/core_status.h

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