[PATCH 1/1] kernelbase: Fix uninitialized return value in GetModuleHandleA().

[Eric Pouech]

From: Eric Pouech

GCC (MingW) 12.2 rightfully warns with:
/home/eric/work/wine/dlls/kernelbase/loader.c: In function 'GetModuleHandleA':
/home/eric/work/wine/dlls/kernelbase/loader.c:332:12: warning: 'ret' may be used uninitialized [-Wmaybe-uninitialized]
  332 |     return ret;
      |            ^~~
/home/eric/work/wine/dlls/kernelbase/loader.c:329:13: note: 'ret' declared here
  329 |     HMODULE ret;
      |             ^~~
So set module to NULL on all error codepaths in GetModuleHandleExA().

Signed-off-by: Eric Pouech 
---
 dlls/kernelbase/loader.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dlls/kernelbase/loader.c b/dlls/kernelbase/loader.c
index 0fd2d7b7c99..685cd1a1361 100644
--- a/dlls/kernelbase/loader.c
+++ b/dlls/kernelbase/loader.c
@@ -355,7 +355,11 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetModuleHandleExA( DWORD flags, LPCSTR name, HMOD
     if (!name || (flags & GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS))
         return GetModuleHandleExW( flags, (LPCWSTR)name, module );

-    if (!(nameW = file_name_AtoW( name, FALSE ))) return FALSE;
+    if (!(nameW = file_name_AtoW( name, FALSE )))
+    {
+        if (module) *module = NULL;
+        return FALSE;
+    }
     return GetModuleHandleExW( flags, nameW, module );
 }