[PATCH v8 3/6] win32u: Always copy devmode in validate_display_settings.

[Rémi Bernon]

From: R��mi Bernon

So that updating dmPelsWidth / dmPelsHeight doesn't modify user devmode.
---
 dlls/win32u/sysparams.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index 514585a0988..fb5b90af414 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -2041,12 +2041,13 @@ static DEVMODEW *validate_display_settings( const WCHAR *adapter_path, const WCH
             devmode = NULL;
     }

-    if (!devmode)
+    if (devmode) memcpy( temp_mode, devmode, devmode->dmSize );
+    else
     {
         if (!read_registry_settings( adapter_path, temp_mode )) return NULL;
         TRACE( "Return to original display mode\n" );
-        devmode = temp_mode;
     }
+    devmode = temp_mode;

if ((devmode->dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
     {