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| author | Aric Cyr <aric.cyr@amd.com> | 2020-05-12 11:48:48 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-05-27 18:42:10 -0400 |
| commit | 185082b679b4bd6dfb69764eaa89213b26f6f703 (patch) | |
| tree | 3d27954d6d7877c4d8eb79aabe481ecb49ef9e9d /drivers/gpu/drm/tegra | |
| parent | 8d43e3966b31df1986342dc8b69072ee26f0589b (diff) | |
| download | linux-185082b679b4bd6dfb69764eaa89213b26f6f703.tar.bz2 | |
drm/amd/display: Fix potential integer wraparound resulting in a hang
[Why]
If VUPDATE_END is before VUPDATE_START the delay calculated can become
very large, causing a soft hang.
[How]
Take the absolute value of the difference between START and END.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
0 files changed, 0 insertions, 0 deletions