From 2af2a33a5d9e938915cf890242b69e6f44f8dafc Mon Sep 17 00:00:00 2001
From: Ivan Komissarov <ABBAPOH@gmail.com>
Date: Sat, 23 Nov 2019 11:19:34 +0900
Subject: Add a check for the readlink result in processNameByPid()

This fixes release build on Linux

Change-Id: I67fb4b01bf578db625343b50b06c0d1a0457999c
Reviewed-by: Richard Weickelt <richard@weickelt.de>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
---
 src/lib/corelib/tools/processutils.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lib/corelib/tools/processutils.cpp b/src/lib/corelib/tools/processutils.cpp
index 04a061e0c..b27592f88 100644
--- a/src/lib/corelib/tools/processutils.cpp
+++ b/src/lib/corelib/tools/processutils.cpp
@@ -92,7 +92,8 @@ QString processNameByPid(qint64 pid)
     char buf[PATH_MAX];
     memset(buf, 0, sizeof(buf));
     sprintf(exePath, "/proc/%lld/exe", pid);
-    readlink(exePath, buf, sizeof(buf));
+    if (readlink(exePath, buf, sizeof(buf)) < 0)
+        return {};
     return FileInfo::fileName(QString::fromUtf8(buf));
 #elif defined(Q_OS_BSD4)
 # if defined(Q_OS_NETBSD)
-- 
cgit v1.2.3