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author | Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> | 2017-05-05 11:30:06 -0400 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 18:07:00 -0400 |
commit | 3273d3bfe58094d9c7b52448399e20f496475afe (patch) | |
tree | dae1314aebbca8c02e1b1d7ef11bac35149edae2 /security/tomoyo | |
parent | f3e4341871bee5c91ffbf9d90c4f5af380759e33 (diff) | |
download | talos-obmc-linux-3273d3bfe58094d9c7b52448399e20f496475afe.tar.gz talos-obmc-linux-3273d3bfe58094d9c7b52448399e20f496475afe.zip |
drm/amd/display: Fix race.
Problem :
A race between two adjecent page flips makes the earlier one
to release an alocated frame buffer for the subsequent one -
since there are 2 frambuffer swapped back and forth between flips,
the 'new' fb of the later flip is actually the 'previous' fb for the earlier flip.
Fix:
Don't set fb->address = 0 in cleanup hook, this is unnecessery and
erases the newly cached adress that was set in prepare_fb of the second
flip.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'security/tomoyo')
0 files changed, 0 insertions, 0 deletions