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Diffstat (limited to 'arch/s390/kernel/ptrace.c')
-rw-r--r--arch/s390/kernel/ptrace.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 33fdc5a79764..9f654da4cecc 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -640,7 +640,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
640 640
641asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) 641asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
642{ 642{
643 long ret; 643 long ret = 0;
644 644
645 /* Do the secure computing check first. */ 645 /* Do the secure computing check first. */
646 secure_computing(regs->gprs[2]); 646 secure_computing(regs->gprs[2]);
@@ -649,7 +649,6 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
649 * The sysc_tracesys code in entry.S stored the system 649 * The sysc_tracesys code in entry.S stored the system
650 * call number to gprs[2]. 650 * call number to gprs[2].
651 */ 651 */
652 ret = regs->gprs[2];
653 if (test_thread_flag(TIF_SYSCALL_TRACE) && 652 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
654 (tracehook_report_syscall_entry(regs) || 653 (tracehook_report_syscall_entry(regs) ||
655 regs->gprs[2] >= NR_syscalls)) { 654 regs->gprs[2] >= NR_syscalls)) {
@@ -671,7 +670,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
671 regs->gprs[2], regs->orig_gpr2, 670 regs->gprs[2], regs->orig_gpr2,
672 regs->gprs[3], regs->gprs[4], 671 regs->gprs[3], regs->gprs[4],
673 regs->gprs[5]); 672 regs->gprs[5]);
674 return ret; 673 return ret ?: regs->gprs[2];
675} 674}
676 675
677asmlinkage void do_syscall_trace_exit(struct pt_regs *regs) 676asmlinkage void do_syscall_trace_exit(struct pt_regs *regs)