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randr: Stop dirty tracking for shared pixmap being destroyed

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Otherwise, we leave a dangling reference to the destroyed pixmap in the
master screen's pixmap_dirty_list.

Fixes regression from commit cf5d6414 ("randr: Factor out shared pixmap
destruction").

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Michel Dänzer 2015-12-02 18:21:12 +09:00 committed by Adam Jackson
parent 2e3d9623ae
commit 5bccde749d
1 changed files with 8 additions and 3 deletions
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11
randr/rrcrtc.c
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@ -363,13 +363,18 @@ RRComputeContiguity(ScreenPtr pScreen)
static void
rrDestroySharedPixmap(RRCrtcPtr crtc, PixmapPtr pPixmap) {
if (crtc->pScreen->current_master && pPixmap->master_pixmap) {
ScreenPtr master = crtc->pScreen->current_master;
if (master && pPixmap->master_pixmap) {
PixmapPtr mscreenpix = master->GetScreenPixmap(master);
master->StopPixmapTracking(mscreenpix, pPixmap);
/*
* Unref the pixmap twice: once for the original reference, and once
* for the reference implicitly added by PixmapShareToSlave.
*/
crtc->pScreen->current_master->DestroyPixmap(pPixmap->master_pixmap);
crtc->pScreen->current_master->DestroyPixmap(pPixmap->master_pixmap);
master->DestroyPixmap(pPixmap->master_pixmap);
master->DestroyPixmap(pPixmap->master_pixmap);
}
crtc->pScreen->DestroyPixmap(pPixmap);