tree adf2453955649221a9a178d7d19d5b1e71f3fe67
parent b172e38e435a158cc84169d5b9127a8dd8d21e76
author Oleg Nesterov <oleg@redhat.com> 1316972782 +0200
committer Linus Torvalds <torvalds@linux-foundation.org> 1316973720 -0700

ptrace: PTRACE_LISTEN forgets to unlock ->siglock

If PTRACE_LISTEN fails after lock_task_sighand() it doesn't drop ->siglock.

Reported-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>