update version

[ltt-control.git] / trunk / ltt-control / lttd / lttd.c

diff --git a/trunk/ltt-control/lttd/lttd.c b/trunk/ltt-control/lttd/lttd.c
index f9e7f3b815593ece3850cab3a9073721044ff16d..ceae377bd75f48cde76d8c0361ae30569d2c35f1 100644 (file)
--- a/trunk/ltt-control/lttd/lttd.c
+++ b/trunk/ltt-control/lttd/lttd.c
@@ -920,7 +920,11 @@ int channels_init()
        if(ret = open_channel_trace_pairs(channel_name, trace_name, &fd_pairs,
                        &inotify_fd, &inotify_watch_array))
                goto close_channel;
-
+       if (fd_pairs.num_pairs == 0) {
+               printf("No channel available for reading, exiting\n");
+               ret = -ENOENT;
+               goto close_channel;
+       }
        if(ret = map_channels(&fd_pairs, 0, fd_pairs.num_pairs))
                goto close_channel;
        return 0;