James Beddek : mshtml: Check for non-NULL plugin host before trying to hold ref.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2846111765350def595de6e9d54bc33d250e808b
URL:    https://gitlab.winehq.org/wine/wine/-/commit/2846111765350def595de6e9d54bc33...

Author: James Beddek <telans(a)posteo.de>
Date:   Fri Aug 18 22:40:33 2023 +1200

mshtml: Check for non-NULL plugin host before trying to hold ref.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55457
Signed-off-by: James Beddek <telans(a)posteo.de>

---

 dlls/mshtml/npplugin.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/mshtml/npplugin.c b/dlls/mshtml/npplugin.c
index 6dfb65c0a6e..309e4e0e04e 100644
--- a/dlls/mshtml/npplugin.c
+++ b/dlls/mshtml/npplugin.c
@@ -301,7 +301,8 @@ static NPError CDECL NPP_New(NPMIMEType pluginType, NPP instance, UINT16 mode, I
     }
 
     instance->pdata = container->plugin_host;
-    IOleClientSite_AddRef(&container->plugin_host->IOleClientSite_iface);
+    if(container->plugin_host)
+        IOleClientSite_AddRef(&container->plugin_host->IOleClientSite_iface);
 
     node_release(&container->element.node);
     return err;