diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index f2741cfc3951..09ac15c6d984 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1126,7 +1126,7 @@ static unsigned long __initdata vmalloc_size = 240 * SZ_1M;
 /*
  * vmalloc=size forces the vmalloc area to be exactly 'size'
  * bytes. This can be used to increase (or decrease) the vmalloc
- * area - the default is 240m.
+ * area - the default is 240MiB.
  */
 static int __init early_vmalloc(char *arg)
 {
@@ -1135,14 +1135,14 @@ static int __init early_vmalloc(char *arg)
 
 	if (vmalloc_reserve < SZ_16M) {
 		vmalloc_reserve = SZ_16M;
-		pr_warn("vmalloc area too small, limiting to %luMB\n",
+		pr_warn("vmalloc area is too small, limiting to %luMiB\n",
 			vmalloc_reserve >> 20);
 	}
 
 	vmalloc_max = VMALLOC_END - (PAGE_OFFSET + SZ_32M + VMALLOC_OFFSET);
 	if (vmalloc_reserve > vmalloc_max) {
 		vmalloc_reserve = vmalloc_max;
-		pr_warn("vmalloc area is too big, limiting to %luMB\n",
+		pr_warn("vmalloc area is too big, limiting to %luMiB\n",
 			vmalloc_reserve >> 20);
 	}