1 files changed, 4 insertions, 5 deletions

diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c
index c0bedcd10f97..18d244f70205 100644
--- a/arch/x86/mm/memtest.c
+++ b/arch/x86/mm/memtest.c
@@ -40,21 +40,20 @@ static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad)
 
 static void __init memtest(u64 pattern, u64 start_phys, u64 size)
 {
-        u64 *p;
-        void *start, *end;
+        u64 *p, *start, *end;
         u64 start_bad, last_bad;
         u64 start_phys_aligned;
-        size_t incr;
+        const size_t incr = sizeof(pattern);
 
-        incr = sizeof(pattern);
         start_phys_aligned = ALIGN(start_phys, incr);
         start = __va(start_phys_aligned);
-        end = start + size - (start_phys_aligned - start_phys);
+        end = start + (size - (start_phys_aligned - start_phys)) / incr;
         start_bad = 0;
         last_bad = 0;
 
         for (p = start; p < end; p++)
                 *p = pattern;
+
         for (p = start; p < end; p++, start_phys_aligned += incr) {
                 if (*p == pattern)
                         continue;