diff options
| author | jimqu <Jim.Qu@amd.com> | 2016-11-28 08:05:46 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 17:02:02 -0400 |
| commit | ead964f24e111aa5ba6ec4c2ee15ae20f11a121a (patch) | |
| tree | 24aab4f926cac5d31b52d579a02286704e71ca1e /drivers | |
| parent | 8e545104aa05b5e0720fd2042e2f9729f9c13744 (diff) | |
drm/amd/display: Fix memory corruption issue.
temp_flip_context is always same as current_context,
and the current_context will be freed in
dc_commit_targets(), but temp_flip_context will be used in
dc_update_surfaces_for_target().
Signed-off-by: JimQu <Jim.Qu@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 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index f7638f84421b..424a7d4b8731 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1096,8 +1096,12 @@ bool dc_commit_targets( resource_validate_ctx_destruct(core_dc->current_context); - dm_free(core_dc->current_context); + if (core_dc->temp_flip_context != core_dc->current_context) { + dm_free(core_dc->temp_flip_context); + core_dc->temp_flip_context = core_dc->current_context; + } core_dc->current_context = context; + memset(core_dc->temp_flip_context, 0, sizeof(*core_dc->temp_flip_context)); return (result == DC_OK); |