- return __find_next_entry(iter, ent_cpu, NULL, ent_ts);
+ /* __find_next_entry will reset ent_size */
+ int ent_size = iter->ent_size;
+ struct trace_entry *entry;
+
+ /*
+ * The __find_next_entry() may call peek_next_entry(), which may
+ * call ring_buffer_peek() that may make the contents of iter->ent
+ * undefined. Need to copy iter->ent now.
+ */
+ if (iter->ent && iter->ent != iter->temp) {
+ if (!iter->temp || iter->temp_size < iter->ent_size) {
+ kfree(iter->temp);
+ iter->temp = kmalloc(iter->ent_size, GFP_KERNEL);
+ if (!iter->temp)
+ return NULL;
+ }
+ memcpy(iter->temp, iter->ent, iter->ent_size);
+ iter->temp_size = iter->ent_size;
+ iter->ent = iter->temp;
+ }
+ entry = __find_next_entry(iter, ent_cpu, NULL, ent_ts);
+ /* Put back the original ent_size */
+ iter->ent_size = ent_size;
+
+ return entry;