[PATCH] render: Propagate allocation failure from createSourcePicture()

[Chris Wilson]

All the callers were already checking for failure, except that
createSourcePicture() itself was failing to check whether it
successfully allocated the Picture.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 render/picture.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/render/picture.c b/render/picture.c
index f134596..165ceac 100644
--- a/render/picture.c
+++ b/render/picture.c
@@ -848,7 +848,11 @@ static void initGradient(SourcePictPtr pGradient, int stopCount,
 static PicturePtr createSourcePicture(void)
 {
     PicturePtr pPicture;
+
     pPicture = dixAllocateObjectWithPrivates(PictureRec, PRIVATE_PICTURE);
+    if (!pPicture)
+	return 0;
+
     pPicture->pDrawable = 0;
     pPicture->pFormat = 0;
     pPicture->pNext = 0;
-- 
1.7.7.3