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window-actor: Guard against %NULL frame mask

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Creating a new cogl texture may fail, in which case the intent to
free it will crash. While something is clearly wrong (insanely
large window, oom, ...), crashing the WM is harsh and we should
try to avoid it if at all possible, so carry on.

https://bugzilla.gnome.org/show_bug.cgi?id=722266
This commit is contained in:
Florian Müllner 2014-01-10 06:26:57 -05:00 committed by Rui Matos
parent ddc171220a
commit 94f39a493f
1 changed files with 2 additions and 1 deletions
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3
src/compositor/meta-window-actor.c
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@ -1714,7 +1714,8 @@ build_and_scan_frame_mask (MetaWindowActor *self,
}
meta_shaped_texture_set_mask_texture (stex, mask_texture);
cogl_object_unref (mask_texture);
if (mask_texture)
cogl_object_unref (mask_texture);
g_free (mask_data);
}