1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/lib/hweight.S b/arch/x86/lib/hweight.S
index 02de3d74d2c5..8a602a1e404a 100644
--- a/arch/x86/lib/hweight.S
+++ b/arch/x86/lib/hweight.S
@@ -35,6 +35,7 @@ ENDPROC(__sw_hweight32)
 
 ENTRY(__sw_hweight64)
 #ifdef CONFIG_X86_64
+        pushq   %rdi
         pushq   %rdx
 
         movq    %rdi, %rdx                      # w -> t
@@ -60,6 +61,7 @@ ENTRY(__sw_hweight64)
         shrq    $56, %rax                       # w = w_tmp >> 56
 
         popq    %rdx
+        popq    %rdi
         ret
 #else /* CONFIG_X86_32 */
         /* We're getting an u64 arg in (%eax,%edx): unsigned long hweight64(__u64 w) */