dinput: Assign to structs instead of using memcpy.

dlls/dinput/effect_linuxinput.c

@@ -783,7 +783,7 @@ HRESULT linuxinput_create_effect(
 
     newEffect->lpVtbl = &LinuxInputEffectVtbl;
     newEffect->ref = 1;
-    memcpy(&(newEffect->guid), rguid, sizeof(*rguid));
+    newEffect->guid = *rguid;
     newEffect->fd = fd;
 
     /* set the type.  this cannot be changed over the effect's life. */

dlls/dinput/mouse.c

@@ -180,7 +180,7 @@ static SysMouseImpl *alloc_device(REFGUID rguid, const void *mvt, IDirectInputIm
     newDevice->base.lpVtbl = mvt;
     newDevice->base.ref = 1;
     newDevice->base.dwCoopLevel = DISCL_NONEXCLUSIVE | DISCL_BACKGROUND;
-    memcpy(&newDevice->base.guid, rguid, sizeof(*rguid));
+    newDevice->base.guid = *rguid;
     InitializeCriticalSection(&newDevice->base.crit);
     newDevice->base.crit.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": SysMouseImpl*->base.crit");
     newDevice->base.dinput = dinput;