1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index e85826829cf2..508bec1cee27 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -858,6 +858,9 @@ void __init reserve_early_overlap_ok(u64 start, u64 end, char *name)
  */
 void __init reserve_early(u64 start, u64 end, char *name)
 {
+        if (start >= end)
+                return;
+
         drop_overlaps_that_are_ok(start, end);
         __reserve_early(start, end, name, 0);
 }