1 files changed, 10 insertions, 2 deletions

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 2f96256dc515..e8cdf715a546 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1196,8 +1196,9 @@ sys_rt_sigreturn:
         be      1f
          nop
 
+        add     %sp, STACKFRAME_SZ, %o0
         call    syscall_trace
-         nop
+         mov    1, %o1
 
 1:
         /* We are returning to a signal handler. */
@@ -1287,8 +1288,12 @@ linux_fast_syscall:
          mov    %i3, %o3
 
 linux_syscall_trace:
+        add     %sp, STACKFRAME_SZ, %o0
         call    syscall_trace
-         nop
+         mov    0, %o1
+        cmp     %o0, 0
+        bne     3f
+         mov    -ENOSYS, %o0
         mov     %i0, %o0
         mov     %i1, %o1
         mov     %i2, %o2
@@ -1337,6 +1342,7 @@ syscall_is_too_hard:
         call    %l7
          mov    %i5, %o5
 
+3:
         st      %o0, [%sp + STACKFRAME_SZ + PT_I0]
 
 ret_sys_call:
@@ -1374,6 +1380,8 @@ ret_sys_call:
          st     %l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 linux_syscall_trace2:
+        add     %sp, STACKFRAME_SZ, %o0
+        mov     1, %o1
         call    syscall_trace
          add    %l1, 0x4, %l2                   /* npc = npc+4 */
         st      %l1, [%sp + STACKFRAME_SZ + PT_PC]