networkd: use new rtnl_message_read() API

[elogind.git] / src / journal / journald-kmsg.c

diff --git a/src/journal/journald-kmsg.c b/src/journal/journald-kmsg.c
index bc42548cd140488607d13e6ded2693e07c6fb8f1..05b128f843db940ebbdc5419299718a1cbae3a4e 100644 (file)
--- a/src/journal/journald-kmsg.c
+++ b/src/journal/journald-kmsg.c
@@ -398,31 +398,45 @@ int server_open_dev_kmsg(Server *s) {
 
         s->dev_kmsg_fd = open("/dev/kmsg", O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
         if (s->dev_kmsg_fd < 0) {
-                log_warning("Failed to open /dev/kmsg, ignoring: %m");
+                log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
+                         "Failed to open /dev/kmsg, ignoring: %m");
                 return 0;
         }
 
-        r = sd_event_add_io(s->event, s->dev_kmsg_fd, EPOLLIN, dispatch_dev_kmsg, s, &s->dev_kmsg_event_source);
+        r = sd_event_add_io(s->event, &s->dev_kmsg_event_source, s->dev_kmsg_fd, EPOLLIN, dispatch_dev_kmsg, s);
         if (r < 0) {
 
                 /* This will fail with EPERM on older kernels where
                  * /dev/kmsg is not readable. */
-                if (r == -EPERM)
-                        return 0;
+                if (r == -EPERM) {
+                        r = 0;
+                        goto fail;
+                }
 
                 log_error("Failed to add /dev/kmsg fd to event loop: %s", strerror(-r));
-                return -errno;
+                goto fail;
         }
 
         r = sd_event_source_set_priority(s->dev_kmsg_event_source, SD_EVENT_PRIORITY_IMPORTANT+10);
         if (r < 0) {
                 log_error("Failed to adjust priority of kmsg event source: %s", strerror(-r));
-                return -errno;
+                goto fail;
         }
 
         s->dev_kmsg_readable = true;
 
         return 0;
+
+fail:
+        if (s->dev_kmsg_event_source)
+                s->dev_kmsg_event_source = sd_event_source_unref(s->dev_kmsg_event_source);
+
+        if (s->dev_kmsg_fd >= 0) {
+                close_nointr_nofail(s->dev_kmsg_fd);
+                s->dev_kmsg_fd = -1;
+        }
+
+        return r;
 }
 
 int server_open_kernel_seqnum(Server *s) {