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-rw-r--r--kernel/signal.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 5630255d2e2..ea4632bd40a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1119,19 +1119,18 @@ kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
int kill_pid_info(int sig, struct siginfo *info, struct pid *pid)
{
int error;
- int acquired_tasklist_lock = 0;
struct task_struct *p;
rcu_read_lock();
- if (unlikely(sig_needs_tasklist(sig))) {
+ if (unlikely(sig_needs_tasklist(sig)))
read_lock(&tasklist_lock);
- acquired_tasklist_lock = 1;
- }
+
p = pid_task(pid, PIDTYPE_PID);
error = -ESRCH;
if (p)
error = group_send_sig_info(sig, info, p);
- if (unlikely(acquired_tasklist_lock))
+
+ if (unlikely(sig_needs_tasklist(sig)))
read_unlock(&tasklist_lock);
rcu_read_unlock();
return error;