libudev: we do not log errors from libraries

[elogind.git] / src / libudev / libudev-monitor.c

diff --git a/src/libudev/libudev-monitor.c b/src/libudev/libudev-monitor.c
index 186e5e1e87360e46ce458331138fa9686c7a5db7..890df9c595bbee4e155ad5d7264484bb0ec15e7a 100644 (file)
--- a/src/libudev/libudev-monitor.c
+++ b/src/libudev/libudev-monitor.c
@@ -121,7 +121,7 @@ static bool udev_has_devtmpfs(struct udev *udev) {
         r = name_to_handle_at(AT_FDCWD, "/dev", &h.handle, &mount_id, 0);
         if (r < 0) {
                 if (errno != EOPNOTSUPP)
-                        udev_err(udev, "name_to_handle_at on /dev: %m\n");
+                        udev_dbg(udev, "name_to_handle_at on /dev: %m\n");
                 return false;
         }
 
@@ -190,7 +190,7 @@ struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const c
         if (fd < 0) {
                 udev_monitor->sock = socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_KOBJECT_UEVENT);
                 if (udev_monitor->sock == -1) {
-                        udev_err(udev, "error getting socket: %m\n");
+                        udev_dbg(udev, "error getting socket: %m\n");
                         free(udev_monitor);
                         return NULL;
                 }
@@ -407,12 +407,15 @@ _public_ int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor)
                 if (err == 0)
                         udev_monitor->snl.nl.nl_pid = snl.nl.nl_pid;
         } else {
-                udev_err(udev_monitor->udev, "bind failed: %m\n");
+                udev_dbg(udev_monitor->udev, "bind failed: %m\n");
                 return -errno;
         }
 
         /* enable receiving of sender credentials */
-        setsockopt(udev_monitor->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+        err = setsockopt(udev_monitor->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+        if (err < 0)
+                udev_dbg(udev_monitor->udev, "setting SO_PASSCRED failed: %m\n");
+
         return 0;
 }
 
@@ -645,7 +648,7 @@ retry:
                 /* udev message needs proper version magic */
                 nlh = (struct udev_monitor_netlink_header *) buf;
                 if (nlh->magic != htonl(UDEV_MONITOR_MAGIC)) {
-                        udev_err(udev_monitor->udev, "unrecognized message signature (%x != %x)\n",
+                        udev_dbg(udev_monitor->udev, "unrecognized message signature (%x != %x)\n",
                                  nlh->magic, htonl(UDEV_MONITOR_MAGIC));
                         udev_device_unref(udev_device);
                         return NULL;