createDrawable may return NULL value, we should check it, or it will
make a segment failed.
Signed-off-by: Wang YanQing <udkni...@gmail.com>
---
src/glx/dri_common.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index e7dba5a..6122d32 100644
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -376,6 +376,12 @@ driFetchDrawable(struct glx_context *gc, GLXDrawable
glxDrawable)
pdraw = psc->driScreen->createDrawable(psc, glxDrawable,
glxDrawable, gc->config);
+
+ if (pdraw == NULL) {
+ fprintf(stderr, "failed to create drawable\n");
+ return NULL;
+ }
+
if (__glxHashInsert(priv->drawHash, glxDrawable, pdraw)) {
(*pdraw->destroyDrawable) (pdraw);
return NULL;
--
1.7.9.2.315.g25a78
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