1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c
index ac140c7be396..bdda2e6c673b 100644
--- a/arch/x86/kernel/cpu/mtrr/cleanup.c
+++ b/arch/x86/kernel/cpu/mtrr/cleanup.c
@@ -266,7 +266,7 @@ range_to_mtrr(unsigned int reg, unsigned long range_startk,
                 if (align > max_align)
                         align = max_align;
 
-                sizek = 1 << align;
+                sizek = 1UL << align;
                 if (debug_print) {
                         char start_factor = 'K', size_factor = 'K';
                         unsigned long start_base, size_base;