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* agent/call-pinentry.c (agent_popup_message_stop): Just kill it. -- By checking if it's alive or not, we can lower a risk of sending SIGINT to a wrong process on unusual condition when PID is re-used to a different process. That's true, however, since it's alive usually, simply sending SIGINT is enough here. Note that here is a race condition for detecting if process is active or not; A process can die just after being detected alive. Moreover, when the process of pinentry accidentally died already, it should have caused return of assuan_transact and the thread of popup_message_thread likely already set popup_finished=1. Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>