1 files changed, 3 insertions, 14 deletions

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 997c6345cdd6..a398eb9018bb 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -197,14 +197,6 @@ void __init bootmem_init(void)
         max_pfn = max_low_pfn = max;
 }
 
-/*
- * Poison init memory with an undefined instruction (0x0).
- */
-static inline void poison_init_mem(void *s, size_t count)
-{
-        memset(s, 0, count);
-}
-
 #ifndef CONFIG_SPARSEMEM_VMEMMAP
 static inline void free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 {
@@ -386,8 +378,7 @@ void __init mem_init(void)
 
 void free_initmem(void)
 {
-        poison_init_mem(__init_begin, __init_end - __init_begin);
-        free_initmem_default(-1);
+        free_initmem_default(0);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
@@ -396,10 +387,8 @@ static int keep_initrd;
 
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-        if (!keep_initrd) {
-                poison_init_mem((void *)start, PAGE_ALIGN(end) - start);
-                free_reserved_area((void *)start, (void *)end, -1, "initrd");
-        }
+        if (!keep_initrd)
+                free_reserved_area((void *)start, (void *)end, 0, "initrd");
 }
 
 static int __init keepinitrd_setup(char *__unused)