X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Ftracepoint.c;h=1ef5d3a601c768822b44504d3a5abbf861b20178;hb=b9caaabb995c6ff103e2457b9a36930b9699de7c;hp=79602740bbb5f396278dbe1665eada4c6f0259f0;hpb=4b48d9d44ebe0e8c31b4fe3b7480941576fff613;p=karo-tx-linux.git

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 79602740bbb5..1ef5d3a601c7 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -272,12 +272,15 @@ static void disable_tracepoint(struct tracepoint *elem)
  *
  * Updates the probe callback corresponding to a range of tracepoints.
  */
-void tracepoint_update_probe_range(struct tracepoint *begin,
-	struct tracepoint *end)
+void
+tracepoint_update_probe_range(struct tracepoint *begin, struct tracepoint *end)
 {
 	struct tracepoint *iter;
 	struct tracepoint_entry *mark_entry;
 
+	if (!begin)
+		return;
+
 	mutex_lock(&tracepoints_mutex);
 	for (iter = begin; iter < end; iter++) {
 		mark_entry = get_tracepoint(iter->name);