X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-registry.c;h=1a00e9349fb2f04c6052a5222acaf7d927fdd471;hp=8c3d08d825c5568255ece6295d0b6be1dc2aa2a4;hb=90e7d72ff2b93752b8c81c49e9251a83b01703c6;hpb=d24ff3fdbdeb795bfde99e499fe75427cbe4f5d7

diff --git a/src/bin/lttng-sessiond/ust-registry.c b/src/bin/lttng-sessiond/ust-registry.c
index 8c3d08d82..1a00e9349 100644
--- a/src/bin/lttng-sessiond/ust-registry.c
+++ b/src/bin/lttng-sessiond/ust-registry.c
@@ -15,6 +15,7 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 #define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <assert.h>
 #include <inttypes.h>
 
@@ -607,20 +608,27 @@ void ust_registry_session_destroy(struct ust_registry_session *reg)
 	struct lttng_ht_iter iter;
 	struct ust_registry_channel *chan;
 
+	if (!reg) {
+		return;
+	}
+
 	/* On error, EBUSY can be returned if lock. Code flow error. */
 	ret = pthread_mutex_destroy(&reg->lock);
 	assert(!ret);
 
-	rcu_read_lock();
-	/* Destroy all event associated with this registry. */
-	cds_lfht_for_each_entry(reg->channels->ht, &iter.iter, chan, node.node) {
-		/* Delete the node from the ht and free it. */
-		ret = lttng_ht_del(reg->channels, &iter);
-		assert(!ret);
-		destroy_channel(chan);
+	if (reg->channels) {
+		rcu_read_lock();
+		/* Destroy all event associated with this registry. */
+		cds_lfht_for_each_entry(reg->channels->ht, &iter.iter, chan,
+				node.node) {
+			/* Delete the node from the ht and free it. */
+			ret = lttng_ht_del(reg->channels, &iter);
+			assert(!ret);
+			destroy_channel(chan);
+		}
+		rcu_read_unlock();
+		ht_cleanup_push(reg->channels);
 	}
-	rcu_read_unlock();
 
-	ht_cleanup_push(reg->channels);
 	free(reg->metadata);
 }