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drm/amd/display: fix null pointer dereference

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While setting cursor position in case of mpo,
input_pixel_processor is not available for underlay,
hence add check of the same to avoid null pointer
access issue.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shirish S 2017-10-26 11:47:42 +05:30 committed by Alex Deucher
parent f5ba60fefa
commit 55d9038b0c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@ -288,7 +288,7 @@ bool dc_stream_set_cursor_position(
pos_cpy.enable = false;
if (ipp->funcs->ipp_cursor_set_position != NULL)
if (ipp !=NULL && ipp->funcs->ipp_cursor_set_position != NULL)
ipp->funcs->ipp_cursor_set_position(ipp, &pos_cpy, &param);
if (mi != NULL && mi->funcs->set_cursor_position != NULL)