stat-util: fix fd_is_network_ns()

This was broken in 77f9fa3b8ea46c27e5a5e9270f71bf1b4000c3e0. My fault.

Fixes: #8543

diff --git a/src/basic/stat-util.c b/src/basic/stat-util.c
index 3689f6e9833706c4a5dbc24dc0c20fd18fe6fbcb..67705947aa4acd8910ae26807040dfaf39d9dfe2 100644 (file)
--- a/src/basic/stat-util.c
+++ b/src/basic/stat-util.c
@@ -254,7 +254,8 @@ int fd_is_network_ns(int fd) {
         if (r <= 0)
                 return r;
 
-        if (ioctl(fd, NS_GET_NSTYPE) < 0)
+        r = ioctl(fd, NS_GET_NSTYPE);
+        if (r < 0)
                 return -errno;
 
         return r == CLONE_NEWNET;