X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fkernel.c;h=381b83e6366c120128d9e6a639a081a24c54b684;hp=570747f183ac96f479fd0a7480919b27345221bd;hb=7c493d31f0a1461e0f17a3fd494fef9459d1987c;hpb=9586c1988d30b9729731a785108cde14990e50dd

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index 570747f18..381b83e63 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -379,16 +379,46 @@ error:
 
 int kernel_track_pid(struct ltt_kernel_session *session, int pid)
 {
+	int ret;
+
 	DBG("Kernel track PID %d for session id %" PRIu64 ".",
 			pid, session->id);
-	return kernctl_track_pid(session->fd, pid);
+	ret = kernctl_track_pid(session->fd, pid);
+	if (!ret) {
+		return LTTNG_OK;
+	}
+	switch (errno) {
+	case EINVAL:
+		return LTTNG_ERR_INVALID;
+	case ENOMEM:
+		return LTTNG_ERR_NOMEM;
+	case EEXIST:
+		return LTTNG_ERR_PID_TRACKED;
+	default:
+		return LTTNG_ERR_UNK;
+	}
 }
 
 int kernel_untrack_pid(struct ltt_kernel_session *session, int pid)
 {
+	int ret;
+
 	DBG("Kernel untrack PID %d for session id %" PRIu64 ".",
 			pid, session->id);
-	return kernctl_untrack_pid(session->fd, pid);
+	ret = kernctl_untrack_pid(session->fd, pid);
+	if (!ret) {
+		return LTTNG_OK;
+	}
+	switch (errno) {
+	case EINVAL:
+		return LTTNG_ERR_INVALID;
+	case ENOMEM:
+		return LTTNG_ERR_NOMEM;
+	case ENOENT:
+		return LTTNG_ERR_PID_NOT_TRACKED;
+	default:
+		return LTTNG_ERR_UNK;
+	}
 }
 
 ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session,