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winex11: Free correct pointer when using xf86vm.

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After allocation the pointer gets shifted by sizeof(xf86vm_modes),
so we have to undo that before calling free.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55909
This commit is contained in:
Fabian Maurer 2023-11-19 22:26:55 +01:00 committed by Alexandre Julliard
parent f341a693f4
commit 18522a0594
1 changed files with 3 additions and 2 deletions
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5
dlls/winex11.drv/xvidmode.c
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@ -159,11 +159,12 @@ static void xf86vm_free_modes(DEVMODEW *modes)
if (modes)
{
BYTE *ptr = (BYTE *)modes - sizeof(xf86vm_modes);
assert(modes[0].dmDriverExtra == sizeof(XF86VidModeModeInfo *));
memcpy(&xf86vm_modes, (BYTE *)modes - sizeof(xf86vm_modes), sizeof(xf86vm_modes));
memcpy(&xf86vm_modes, ptr, sizeof(xf86vm_modes));
XFree(xf86vm_modes);
free(ptr);
}
free(modes);
}
static BOOL xf86vm_get_current_mode(x11drv_settings_id id, DEVMODEW *mode)