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Diffstat (limited to 'arch/x86_64/mm/numa.c')
-rw-r--r--arch/x86_64/mm/numa.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index a828a01739cc..15b67d2760cb 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -53,6 +53,8 @@ static int __init populate_memnodemap(
int res = -1;
unsigned long addr, end;
+ if (shift >= 64)
+ return -1;
memset(memnodemap, 0xff, sizeof(memnodemap));
for (i = 0; i < numnodes; i++) {
addr = nodes[i].start;
@@ -65,7 +67,7 @@ static int __init populate_memnodemap(
if (memnodemap[addr >> shift] != 0xff)
return -1;
memnodemap[addr >> shift] = i;
- addr += (1 << shift);
+ addr += (1UL << shift);
} while (addr < end);
res = 1;
}