px4 subscriber/nuttx: don't call null callback

2026-07-05 05:40:35 +08:00 · 2014-12-10 12:41:54 +01:00
parent 24fd5759b5
commit e622430460
1 changed files with 4 additions and 0 deletions
@@ -115,6 +115,10 @@ public:
 	 */
 	void update()
 	{
+		if (_callback == nullptr) {
+			return;
+		}
+
 		if (!uORB::Subscription<M>::updated()) {
 			/* Topic not updated, do not call callback */
 			return;