From 5e9c522eeade3a2cb1f5679db84d8164b405860d Mon Sep 17 00:00:00 2001
From: Craig Small <csmall@enc.com.au>
Date: Sat, 2 Jul 2016 14:49:51 +1000
Subject: [PATCH] kill: report error if cannot kill process

Shell kill would report a problem if you tried to kill a process
while procps kill was silent. This meant it looked like kill worked
when it actually failed.

References:
 commit 07642b8ea6d4d61518808de2e5e7f713a2f36618
 https://bugs.debian.org/733172
---
 NEWS   | 1 +
 kill.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/NEWS b/NEWS
index d04b42e1..ef62e0f2 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,7 @@ procps-ng-NEXT
   * ps: Fallback to attr/current for context Debian #786956
   * tests: Conditionally add prctl Debian #816237
   * pidof: check cmd if space in argv0. GitLab #4
+  * kill: report error if cannot kill process #733172
 
 procps-ng-3.3.11
 ----------------
diff --git a/kill.c b/kill.c
index 315422b8..39386df2 100644
--- a/kill.c
+++ b/kill.c
@@ -132,6 +132,7 @@ int main(int argc, char **argv)
         pid = strtol_or_err(argv[i], _("failed to parse argument"));
         if (!kill((pid_t) pid, signo))
             continue;
+        error(0, errno, "(%d)", pid);
         exitvalue = EXIT_FAILURE;
         continue;
     }