diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index ad299e7..9488b63 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -121,7 +121,7 @@ static void flush_dcache_range_chunked(unsigned long start, unsigned long stop,
 	unsigned long i;
 
 	for (i = start; i < stop; i += chunk) {
-		flush_dcache_range(i, min(stop, start + chunk));
+		flush_dcache_range(i, min(stop, i + chunk));
 		cond_resched();
 	}
 }