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-rw-r--r--kernel/ptrace.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 8aad0331d82e..4d50e06fd745 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -440,6 +440,7 @@ struct task_struct *ptrace_get_task_struct(pid_t pid)
child = find_task_by_pid(pid);
if (child)
get_task_struct(child);
+
read_unlock(&tasklist_lock);
if (!child)
return ERR_PTR(-ESRCH);