New public API for lttng control

[lttng-tools.git] / ltt-sessiond / kernel-ctl.c

diff --git a/ltt-sessiond/kernel-ctl.c b/ltt-sessiond/kernel-ctl.c
index 0b0fca836bd59b612b3ffbc4eda86f855b2f8954..34dc6562c5168af7c6dd07ac91e3f8f1f0245274 100644 (file)
--- a/ltt-sessiond/kernel-ctl.c
+++ b/ltt-sessiond/kernel-ctl.c
@@ -281,6 +281,9 @@ int kernel_enable_event(struct ltt_kernel_event *event)
        ret = kernctl_enable(event->fd);
        if (ret < 0) {
                perror("enable event ioctl");
+               if (errno == EEXIST) {
+                       ret = -EEXIST;
+               }
                goto error;
        }