=== modified file 'plugins.d/mandos-client.c'
--- plugins.d/mandos-client.c	2018-02-18 00:40:22 +0000
+++ plugins.d/mandos-client.c	2018-02-18 01:03:48 +0000
@@ -1923,19 +1923,20 @@
       return;
     }
   }
+  int devnull = (int)TEMP_FAILURE_RETRY(open("/dev/null", O_RDONLY));
+  if(devnull == -1){
+    perror_plus("open(\"/dev/null\", O_RDONLY)");
+    return;
+  }
   int numhooks = scandirat(hookdir_fd, ".", &direntries,
 			   runnable_hook, alphasort);
   if(numhooks == -1){
     perror_plus("scandir");
+    close(devnull);
     return;
   }
   struct dirent *direntry;
   int ret;
-  int devnull = (int)TEMP_FAILURE_RETRY(open("/dev/null", O_RDONLY));
-  if(devnull == -1){
-    perror_plus("open(\"/dev/null\", O_RDONLY)");
-    return;
-  }
   for(int i = 0; i < numhooks; i++){
     direntry = direntries[i];
     if(debug){