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drm: Silence the compiler for drm_mode_get_hv_timings()

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Since moving drm_crtc_get_hv_timings() into drm_modes.c, the compiler
has been able to get smarter and spots that drm_mode_copy() is trying to
preserve garbage from the stack.

Fixes: 196cd5d3758c ("drm: s/drm_crtc_get_hv_timings/drm_mode_get_hv_timings/")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126114409.9115-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-01-26 11:44:09 +00:00 committed by Daniel Vetter
parent 559bdaf729
commit 6f15f84c38
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/drm_modes.c
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@ -808,9 +808,8 @@ EXPORT_SYMBOL(drm_mode_vrefresh);
void drm_mode_get_hv_timing(const struct drm_display_mode *mode,
int *hdisplay, int *vdisplay)
{
struct drm_display_mode adjusted;
struct drm_display_mode adjusted = *mode;
drm_mode_copy(&adjusted, mode);
drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);
*hdisplay = adjusted.crtc_hdisplay;
*vdisplay = adjusted.crtc_vdisplay;