diff options
| author | Russell King <rmk@arm.linux.org.uk> | 2015-10-26 23:50:59 +0000 |
|---|---|---|
| committer | Russell King <rmk@arm.linux.org.uk> | 2015-11-08 20:09:04 +0000 |
| commit | 8ce6f85a1a221ace10d01d8ac737d88ab0dbecf6 (patch) | |
| tree | 912171a3d3dbcb71fe337027b9a7f211af61fde7 | |
| parent | e2990dc335a6cb3354db1249a208a3a3aa1f67aa (diff) | |
src: common_drm_covering_crtc() returns NULL if !vtSema
When we've been switched away, the X server no longer owns the CRTC,
so reporting the CRTC which a pixmap is on is not appropriate.
Return NULL (indicating no CRTC) when we're switched away.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
| -rw-r--r-- | src/common_drm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/common_drm.c b/src/common_drm.c index 19110d1..263301e 100644 --- a/src/common_drm.c +++ b/src/common_drm.c @@ -1329,6 +1329,10 @@ xf86CrtcPtr common_drm_covering_crtc(ScrnInfoPtr pScrn, BoxPtr box, BoxRec crtc_box, cover_box; int coverage, best_coverage, c; + /* If we do not own the VT, we do not own the CRTC */ + if (!pScrn->vtSema) + return NULL; + best_crtc = NULL; best_coverage = 0; box_ret->x1 = box_ret->x2 = box_ret->y1 = box_ret->y2 = 0; |