diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 53228eb31..c313b0a11 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -438,8 +438,16 @@ kill_sl_info(int sig, struct siginfo *info, pid_t sess) inline int kill_proc_info(int sig, struct siginfo *info, pid_t pid) { - struct task_struct *p = find_task_by_pid(pid); - return p ? send_sig_info(sig, info, p) : -ESRCH; + int error; + struct task_struct *p; + + read_lock(&tasklist_lock); + p = find_task_by_pid(pid); + error = -ESRCH; + if (p) + error = send_sig_info(sig, info, p); + read_unlock(&tasklist_lock); + return error; } /* |