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authorAlbert Damen <albrt@gmx.net>2009-10-25 18:02:07 +0100
committerCarl Worth <cworth@cworth.org>2009-10-26 11:36:52 -0700
commit10946118dd3a63f1375a1bfde0b2f0542a93c1c2 (patch)
treef4d2d960e6c940f86fffc07a06140ceb95849305 /uxa
parent751e0a3e4576bbf4bffa56bbd6d4de28f10db98e (diff)
Fix crash in uxa_acquire_pattern when pDst is NULL
This avoids a crash when an XRenderComposite call is made with a -1 value for width/height, (which apparently compiz's gtk-window- decorator likes to do). Fixes bug: X crashes in uxa_acquire_pattern when logging in (gdm) http://bugs.freedesktop.org/show_bug.cgi?id=24724 Signed-off-by: Albert Damen <albrt@gmx.net> Reviewed-by: Carl Worth <cworth@cworth.org>
Diffstat (limited to 'uxa')
-rw-r--r--uxa/uxa-render.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/uxa/uxa-render.c b/uxa/uxa-render.c
index 497c93d2..7c0dbe53 100644
--- a/uxa/uxa-render.c
+++ b/uxa/uxa-render.c
@@ -449,6 +449,8 @@ uxa_acquire_pattern(ScreenPtr pScreen,
PicturePtr pDst;
pDst = uxa_picture_for_pixman_format(pScreen, format, width, height);
+ if (!pDst)
+ return 0;
if (uxa_prepare_access(pDst->pDrawable, UXA_ACCESS_RW)) {
fbComposite(PictOpSrc, pSrc, NULL, pDst,
x, y, 0, 0, 0, 0, width, height);