udevadm: monitor - print error if we can not bind to socket

diff --git a/udev/udevadm-monitor.c b/udev/udevadm-monitor.c
index d8ec066467e9fbb001d3587b7580e80bc08b1e67..b5897b9ff8d5586f4980009445f1e56e3ea6f124 100644 (file)
--- a/udev/udevadm-monitor.c
+++ b/udev/udevadm-monitor.c
@@ -127,10 +127,12 @@ int udevadm_monitor(struct udev *udev, int argc, char *argv[])
        if (print_udev) {
                udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
                if (udev_monitor == NULL) {
+                       fprintf(stderr, "error: unable to create netlink socket\n");
                        rc = 1;
                        goto out;
                }
                if (udev_monitor_enable_receiving(udev_monitor) < 0) {
+                       fprintf(stderr, "error: unable to subscribe to udev events\n");
                        rc = 2;
                        goto out;
                }
@@ -139,11 +141,12 @@ int udevadm_monitor(struct udev *udev, int argc, char *argv[])
        if (print_kernel) {
                kernel_monitor = udev_monitor_new_from_netlink(udev, "kernel");
                if (kernel_monitor == NULL) {
-                       fprintf(stderr, "unable to subscribe to kernel events\n");
+                       fprintf(stderr, "error: unable to create netlink socket\n");
                        rc = 3;
                        goto out;
                }
                if (udev_monitor_enable_receiving(kernel_monitor) < 0) {
+                       fprintf(stderr, "error: unable to subscribe to kernel events\n");
                        rc = 4;
                        goto out;
                }