1 files changed, 13 insertions, 9 deletions

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 07de1bbb69a5..f5f96021caa0 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -288,19 +288,23 @@ tracesys:
         STREG   %r18,PT_GR18(%r2)
         /* Finished saving things for the debugger */
 
-        ldi     0,%r26                          /* syscall entry */
-        ldil    L%syscall_trace,%r1
+        copy    %r2,%r26
+        ldil    L%do_syscall_trace_enter,%r1
         ldil    L%tracesys_next,%r2
-        be      R%syscall_trace(%sr7,%r1)
+        be      R%do_syscall_trace_enter(%sr7,%r1)
         ldo     R%tracesys_next(%r2),%r2
         
-tracesys_next:  
+tracesys_next:
+        /* do_syscall_trace_enter either returned the syscallno, or -1L,
+         *  so we skip restoring the PT_GR20 below, since we pulled it from
+         *  task->thread.regs.gr[20] above.
+         */
+        copy    %ret0,%r20
         ldil    L%sys_call_table,%r1
         ldo     R%sys_call_table(%r1), %r19
 
         ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
         LDREG   TI_TASK(%r1), %r1
-        LDREG   TASK_PT_GR20(%r1), %r20
         LDREG   TASK_PT_GR26(%r1), %r26         /* Restore the users args */
         LDREG   TASK_PT_GR25(%r1), %r25
         LDREG   TASK_PT_GR24(%r1), %r24
@@ -337,8 +341,8 @@ tracesys_exit:
 #ifdef CONFIG_64BIT
         ldo     -16(%r30),%r29                  /* Reference param save area */
 #endif
-        ldi     1,%r26                          /* syscall exit */
-        bl      syscall_trace, %r2
+        ldo     TASK_REGS(%r1),%r26
+        bl      do_syscall_trace_exit,%r2
         STREG   %r28,TASK_PT_GR28(%r1)          /* save return value now */
         ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
         LDREG   TI_TASK(%r1), %r1
@@ -359,8 +363,8 @@ tracesys_sigexit:
 #ifdef CONFIG_64BIT
         ldo     -16(%r30),%r29                  /* Reference param save area */
 #endif
-        bl      syscall_trace, %r2
-        ldi     1,%r26                          /* syscall exit */
+        bl      do_syscall_trace_exit,%r2
+        ldo     TASK_REGS(%r1),%r26
 
         ldil    L%syscall_exit_rfi,%r1
         be,n    R%syscall_exit_rfi(%sr7,%r1)