[PATCH 4/5] win32u: Keep all device manager context gpus in a list.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/win32u/sysparams.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index 729effa841b..b7fe67f65c5 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -926,10 +926,10 @@ static unsigned int format_date( WCHAR *bufferW, LONGLONG time )
 struct device_manager_ctx
 {
     UINT gpu_count;
+    struct list gpus;
     UINT source_count;
     UINT monitor_count;
     HANDLE mutex;
-    struct gpu *gpu;
     struct source source;
     HKEY source_key;
     /* for the virtual desktop settings */
@@ -1262,8 +1262,7 @@ static void add_gpu( const char *name, const struct pci_id *pci_id, const GUID *
         WARN( "Failed to write gpu to registry\n" );
     else
     {
-        if (ctx->gpu) gpu_release( ctx->gpu );
-        ctx->gpu = gpu;
+        list_add_tail( &ctx->gpus, &gpu->entry );
         ctx->gpu_count++;
     }
 }
@@ -1313,7 +1312,7 @@ static BOOL write_source_to_registry( const struct source *source, HKEY *source_
 static void add_source( const char *name, UINT state_flags, void *param )
 {
     struct device_manager_ctx *ctx = param;
-    struct gpu *gpu = ctx->gpu;
+    struct gpu *gpu = LIST_ENTRY( list_tail( &ctx->gpus ), struct gpu, entry );

TRACE( "name %s, state_flags %#x\n", name, state_flags );

@@ -1499,7 +1498,12 @@ static void release_display_manager_ctx( struct device_manager_ctx *ctx )
     }
     if (ctx->gpu_count) cleanup_devices();

-    gpu_release( ctx->gpu );
+    while (!list_empty( &ctx->gpus ))
+    {
+        struct gpu *gpu = LIST_ENTRY( list_head( &ctx->gpus ), struct gpu, entry );
+        list_remove( &gpu->entry );
+        gpu_release( gpu );
+    }
 }

static void clear_display_devices(void)
@@ -1886,7 +1890,7 @@ static void add_virtual_modes( struct device_manager_ctx *ctx, const DEVMODEW *c
 static BOOL add_virtual_source( struct device_manager_ctx *ctx )
 {
     DEVMODEW current, initial = ctx->primary, maximum = ctx->primary;
-    struct gpu *gpu = ctx->gpu;
+    struct gpu *gpu = LIST_ENTRY( list_tail( &ctx->gpus ), struct gpu, entry );
     struct source virtual_source =
     {
         .state_flags = DISPLAY_DEVICE_ATTACHED_TO_DESKTOP | DISPLAY_DEVICE_PRIMARY_DEVICE | DISPLAY_DEVICE_VGA_COMPATIBLE,
@@ -1952,7 +1956,7 @@ BOOL update_display_cache( BOOL force )
     static const WCHAR wine_service_station_name[] =
         {'_','_','w','i','n','e','s','e','r','v','i','c','e','_','w','i','n','s','t','a','t','i','o','n',0};
     HWINSTA winstation = NtUserGetProcessWindowStation();
-    struct device_manager_ctx ctx = {0};
+    struct device_manager_ctx ctx = {.gpus = LIST_INIT(ctx.gpus)};
     UINT status;
     WCHAR name[MAX_PATH];