diff options
| author |   Matt Roper <matthew.d.roper@intel.com> | 2014-12-11 07:20:57 -0800 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-11 16:57:18 +0100 |
| commit | 7432ca5acec8a24a7e576c92d28449e2d790b734 (patch) | |
| tree | 1dfbbb897c5c1e27c9c612f29c61a6eb1367647a /drivers/gpu/drm/drm_plane_helper.c | |
| parent | drm/doc: Document drm_add_modes_noedid() usage (diff) | |
| download | linux-dev-7432ca5acec8a24a7e576c92d28449e2d790b734.tar.xz linux-dev-7432ca5acec8a24a7e576c92d28449e2d790b734.zip | |
drm/plane-helper: Test for plane disable earlier
drm_plane_helper_check_update() currently uses crtc before testing whether
we're disabling the plane (fb == NULL). Move the fb test before the first crtc
usage so that crtc == NULL doesn't have to be handled by the caller.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/drm_plane_helper.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 18a1ac6ac22f..391dfb7d1086 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -142,6 +142,17 @@ int drm_plane_helper_check_update(struct drm_plane *plane, { int hscale, vscale; + if (!fb) { + *visible = false; + return 0; + } + + /* crtc should only be NULL when disabling (i.e., !fb) */ + if (WARN_ON(!crtc)) { + *visible = false; + return 0; + } + if (!crtc->enabled && !can_update_disabled) { DRM_DEBUG_KMS("Cannot update plane of a disabled CRTC.\n"); return -EINVAL; @@ -155,11 +166,6 @@ int drm_plane_helper_check_update(struct drm_plane *plane, return -ERANGE; } - if (!fb) { - *visible = false; - return 0; - } - *visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale); if (!*visible) /* |