commit bc5c4b0e30ff426d7b9d6611098d02fc5c7d45d1
author Xu, Zhengguo <zhengguo.xu@intel.com> Thu Aug 12 13:47:33 2021 +0800
committer XinfengZhang <carl.zhang@intel.com> Thu Sep 02 22:29:50 2021 -0400
tree f4654a984cfcd4ac83260a80604e5151813eebd2
parent 6e86b4fb4dafa123b1e31821f61da88f10cfbe91

Check the function pointer before using

Fixes: #536

Signed-off-by: Xu, Zhengguo <zhengguo.xu@intel.com>

va/x11/va_dricommon.c

diff --git a/va/x11/va_dricommon.c b/va/x11/va_dricommon.c
index 946703c..cd5053b 100644
--- a/va/x11/va_dricommon.c
+++ b/va/x11/va_dricommon.c
@@ -71,11 +71,17 @@
         dri_drawable = dri_drawable->next;
     }
 
-    dri_drawable = dri_state->createDrawable(ctx, drawable);
-    dri_drawable->x_drawable = drawable;
-    dri_drawable->is_window = is_window(ctx->native_dpy, drawable);
-    dri_drawable->next = dri_state->drawable_hash[index];
-    dri_state->drawable_hash[index] = dri_drawable;
+    if(dri_state->createDrawable)
+    {
+        dri_drawable = dri_state->createDrawable(ctx, drawable);
+    }
+    if(dri_drawable)
+    {
+        dri_drawable->x_drawable = drawable;
+        dri_drawable->is_window = is_window(ctx->native_dpy, drawable);
+        dri_drawable->next = dri_state->drawable_hash[index];
+        dri_state->drawable_hash[index] = dri_drawable;
+    }
 
     return dri_drawable;
 }