From e91c404201bda5ff0cef2955c38449dba02bcecb Mon Sep 17 00:00:00 2001
From: Giampaolo Rodola <g.rodola@gmail.com>
Date: Sat, 21 Dec 2024 13:49:25 +0100
Subject: [PATCH] BSD cmdline()

---
 psutil/_psbsd.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/psutil/_psbsd.py b/psutil/_psbsd.py
index 8334fa128..abd79ed35 100644
--- a/psutil/_psbsd.py
+++ b/psutil/_psbsd.py
@@ -698,10 +698,12 @@ def cmdline(self):
                 return cext.proc_cmdline(self.pid)
             except OSError as err:
                 if err.errno == errno.EINVAL:
+                    # fmt: off
                     if is_zombie(self.pid):
-                        raise ZombieProcess(self.pid, self._name, self._ppid)
+                        raise ZombieProcess(self.pid, self._name, self._ppid) from err  # noqa: E501
                     elif not pid_exists(self.pid):
-                        raise NoSuchProcess(self.pid, self._name, self._ppid)
+                        raise NoSuchProcess(self.pid, self._name, self._ppid) from err  # noqa: E501
+                    # fmt: on
                     else:
                         # XXX: this happens with unicode tests. It means the C
                         # routine is unable to decode invalid unicode chars.