diff options
Diffstat (limited to 'kernel/ptrace.c')
| -rw-r--r-- | kernel/ptrace.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index c9cf48b21f05..f62a568e84ec 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -235,16 +235,6 @@ out: return retval; } -static inline void __ptrace_detach(struct task_struct *child, unsigned int data) -{ - child->exit_code = data; - /* .. re-parent .. */ - __ptrace_unlink(child); - /* .. and wake it up. */ - if (child->exit_state != EXIT_ZOMBIE) - wake_up_process(child); -} - int ptrace_detach(struct task_struct *child, unsigned int data) { if (!valid_signal(data)) @@ -254,10 +244,16 @@ int ptrace_detach(struct task_struct *child, unsigned int data) ptrace_disable(child); clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - write_lock_irq(&tasklist_lock); /* protect against de_thread()->release_task() */ - if (child->ptrace) - __ptrace_detach(child, data); + write_lock_irq(&tasklist_lock); + if (child->ptrace) { + child->exit_code = data; + + __ptrace_unlink(child); + + if (!child->exit_state) + wake_up_process(child); + } write_unlock_irq(&tasklist_lock); return 0; |