Fix: perf counter context: leak event field structure

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Icbe10b546de0561fcbcb2446db68f8f7b2d66923

diff --git a/src/liblttng-ust/lttng-context-perf-counters.c b/src/liblttng-ust/lttng-context-perf-counters.c
index 39b51f3b5f8f08b2e96d53c789583ade998da3c3..5f5b5cbfeac086aaaa5117fd08adc21519c51e6e 100644 (file)
--- a/src/liblttng-ust/lttng-context-perf-counters.c
+++ b/src/liblttng-ust/lttng-context-perf-counters.c
@@ -62,6 +62,7 @@ struct lttng_perf_counter_field {
        struct perf_event_attr attr;
        struct cds_list_head thread_field_list; /* Per-field list of thread fields */
        char *name;
+       struct lttng_ust_event_field *event_field;
 };
 
 static pthread_key_t perf_counter_key;
@@ -504,6 +505,7 @@ void lttng_destroy_perf_counter_ctx_field(void *priv)
                        thread_field_node)
                lttng_destroy_perf_thread_field(pos);
        lttng_perf_unlock();
+       free(perf_field->event_field);
        free(perf_field);
 }
 
@@ -570,6 +572,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
        perf_field->attr.exclude_kernel = perf_get_exclude_kernel();
        CDS_INIT_LIST_HEAD(&perf_field->thread_field_list);
        perf_field->name = name_alloc;
+       perf_field->event_field = event_field;
 
        /* Ensure that this perf counter can be used in this process. */
        ret = open_perf_fd(&perf_field->attr);