mountmgr: Avoid operating on a null CFStringRef, which would crash.

Signed-off-by: Ken Thomases <ken@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

mountmgr: Avoid operating on a null CFStringRef, which would crash.
7e312c34 · Ken Thomases · Alexandre Julliard · c7a0d5f6 · 7e312c34
Commit 7e312c34 authored Sep 09, 2020 by Ken Thomases Committed by Alexandre Julliard Sep 10, 2020
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diskarb.c dlls/mountmgr.sys/diskarb.c +1 -1

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--- a/dlls/mountmgr.sys/diskarb.c
+++ b/dlls/mountmgr.sys/diskarb.c
@@ -298,7 +298,7 @@ static CFStringRef find_service_id( const WCHAR *adapter )

        service = CFArrayGetValueAtIndex( services, i );
        name = SCNetworkInterfaceGetBSDName( SCNetworkServiceGetInterface(service) );
-        if (CFStringGetLength( name ) < ARRAY_SIZE( buf ))
+        if (name && CFStringGetLength( name ) < ARRAY_SIZE( buf ))
        {
            CFStringGetCharacters( name, CFRangeMake(0, CFStringGetLength(name)), buf );
            if (!lstrcmpW( buf, unix_name ) && (id = SCNetworkServiceGetServiceID( service )))