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authorJeremy Huddleston <jeremyhu@freedesktop.org>2009-10-13 12:54:56 -0700
committerKeith Packard <keithp@keithp.com>2009-10-13 13:59:58 -0700
commit2b14e142039193ea854a02706662204f4f5f6db8 (patch)
tree58861920529202afa2750803e9e7bd3acd481cd5
parent5b91dfac6fbdf35288a4558638d4923e230ab8d3 (diff)
downloadxserver-2b14e142039193ea854a02706662204f4f5f6db8.tar.gz
Rootless: src drawable window can now be NULL
Fix a possible crash when pSrc->pDrawable is NULL. Signed-off-by: Colin Harrison <colin.harrison@virgin.net> Signed-off-by: Jeremy Huddleston <jeremyhu@freedesktop.org> Signed-off-by: Keith Packard <keithp@keithp.com>
-rw-r--r--miext/rootless/rootlessScreen.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/miext/rootless/rootlessScreen.c b/miext/rootless/rootlessScreen.c
index b10ca70eb..c73d5170b 100644
--- a/miext/rootless/rootlessScreen.c
+++ b/miext/rootless/rootlessScreen.c
@@ -257,7 +257,7 @@ RootlessComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
maskWin = (pMask->pDrawable->type == DRAWABLE_WINDOW) ?
(WindowPtr)pMask->pDrawable : NULL;
}
- srcWin = (pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
+ srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
(WindowPtr)pSrc->pDrawable : NULL;
dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ?
(WindowPtr)pDst->pDrawable : NULL;
@@ -297,7 +297,7 @@ RootlessGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
GlyphPtr glyph;
WindowPtr srcWin, dstWin;
- srcWin = (pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
+ srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
(WindowPtr)pSrc->pDrawable : NULL;
dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ?
(WindowPtr)pDst->pDrawable : NULL;