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-rw-r--r--kernel/tracepoint.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 79602740bbb5..adf28734fe2d 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -272,12 +272,17 @@ static void disable_tracepoint(struct tracepoint *elem)
272 * 272 *
273 * Updates the probe callback corresponding to a range of tracepoints. 273 * Updates the probe callback corresponding to a range of tracepoints.
274 */ 274 */
275void tracepoint_update_probe_range(struct tracepoint *begin, 275void
276 struct tracepoint *end) 276tracepoint_update_probe_range(struct tracepoint *begin, struct tracepoint *end)
277{ 277{
278 struct tracepoint *iter; 278 struct tracepoint *iter;
279 struct tracepoint_entry *mark_entry; 279 struct tracepoint_entry *mark_entry;
280 280
281 if (!begin) {
282 WARN_ON_ONCE(1);
283 return;
284 }
285
281 mutex_lock(&tracepoints_mutex); 286 mutex_lock(&tracepoints_mutex);
282 for (iter = begin; iter < end; iter++) { 287 for (iter = begin; iter < end; iter++) {
283 mark_entry = get_tracepoint(iter->name); 288 mark_entry = get_tracepoint(iter->name);