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authorDavid Francis <David.Francis@amd.com>2018-09-21 14:36:17 -0400
committerAlex Deucher <alexander.deucher@amd.com>2018-11-05 14:20:44 -0500
commitce8a805ae1768be16c62a541ce1b2d23e7b99124 (patch)
treed7fcfa0f340535a4e1177b35a8b3f18695d434cc
parente1e8a020c6b88931d541ccd44043285ab93324d3 (diff)
drm/amd/display: initialize dc_transfer_func->ctx
[Why] dc_transfer_func structs were being passed around with a null pointer, waiting for unsuspecting programmers to dereference it. [How] Initialize it Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_stream.c1
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_surface.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 2ac848a106ba..e113439aaa86 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -106,6 +106,7 @@ static void construct(struct dc_stream_state *stream,
stream->out_transfer_func = dc_create_transfer_func();
stream->out_transfer_func->type = TF_TYPE_BYPASS;
+ stream->out_transfer_func->ctx = stream->ctx;
}
static void destruct(struct dc_stream_state *stream)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
index 8fb3aefd195c..c60c9b4c3075 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c
@@ -44,6 +44,7 @@ static void construct(struct dc_context *ctx, struct dc_plane_state *plane_state
plane_state->in_transfer_func = dc_create_transfer_func();
plane_state->in_transfer_func->type = TF_TYPE_BYPASS;
+ plane_state->in_transfer_func->ctx = ctx;
}
static void destruct(struct dc_plane_state *plane_state)