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

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

mshtml: Check for non-NULL plugin host before trying to hold ref.
28461117 · James Beddek · Alexandre Julliard · 3ff81e3a · 28461117
Commit 28461117 authored Aug 18, 2023 by James Beddek Committed by Alexandre Julliard Aug 18, 2023
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npplugin.c dlls/mshtml/npplugin.c +2 -1

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--- 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;