From 179063d63c4e1f49dd863db7ec5d70a3fa2a3713 Mon Sep 17 00:00:00 2001
From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Mon, 11 Feb 2019 00:57:38 +0100
Subject: [PATCH 21/27] ptrace_restart: do not print diagnostics when ptrace
 returns ESRCH

After some discussion, it was decided that the situation
when the tracee is gone does not worth reporting.

* strace.c (ptrace_restart): Return early if ptrace returned ESRCH.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1662936
---
 strace.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/strace.c b/strace.c
index f2aa846..0745838 100644
--- a/strace.c
+++ b/strace.c
@@ -353,7 +353,7 @@ ptrace_restart(const unsigned int op, struct tcb *const tcp, unsigned int sig)
 	errno = 0;
 	ptrace(op, tcp->pid, 0L, (unsigned long) sig);
 	err = errno;
-	if (!err)
+	if (!err || err == ESRCH)
 		return 0;
 
 	switch (op) {
@@ -384,8 +384,6 @@ ptrace_restart(const unsigned int op, struct tcb *const tcp, unsigned int sig)
 			tcp->pid, msg, strerror(err));
 		line_ended();
 	}
-	if (err == ESRCH)
-		return 0;
 	errno = err;
 	perror_msg("ptrace(PTRACE_%s,pid:%d,sig:%u)", msg, tcp->pid, sig);
 	return -1;
-- 
2.1.4