[trival patch]x86: unmap vdso pages are missed

[Shaohua Li]

The memory hasn't been unmapped.

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>

diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index ac74869..80f23ed 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -67,6 +67,7 @@ static int __init init_vdso_vars(void)
 	*(typeof(__ ## x) **) var_ref(VDSO64_SYMBOL(vbase, x), #x) = &__ ## x;
 #include "vextern.h"
 #undef VEXTERN
+	vunmap(vbase);
 	return 0;
 
  oom:


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