diff --git a/platforms/nuttx/src/px4/common/cdc_acm_check.cpp b/platforms/nuttx/src/px4/common/cdc_acm_check.cpp
index 6127c5ae84de..d2e18ce37b36 100644
--- a/platforms/nuttx/src/px4/common/cdc_acm_check.cpp
+++ b/platforms/nuttx/src/px4/common/cdc_acm_check.cpp
@@ -336,25 +336,19 @@ static void mavlink_usb_check(void *arg)
 #if defined(CONFIG_SERIAL_PASSTHRU_UBLOX)
 
 								else if (launch_passthru) {
-									sched_lock();
 									exec_argv = (char **)gps_argv;
 									px4_exec(exec_argv[0], exec_argv, nullptr, 0);
-									sched_unlock();
 									exec_argv = (char **)passthru_argv;
 								}
 
 #endif
 
-								sched_lock();
-
 								if (px4_exec(exec_argv[0], exec_argv, nullptr, 0) > 0) {
 									usb_auto_start_state = UsbAutoStartState::connected;
 
 								} else {
 									usb_auto_start_state = UsbAutoStartState::disconnecting;
 								}
-
-								sched_unlock();
 							}
 						}
 					}
@@ -374,10 +368,8 @@ static void mavlink_usb_check(void *arg)
 
 		case UsbAutoStartState::connected:
 			if (!vbus_present && !vbus_present_prev) {
-				sched_lock();
 				static const char *stop_argv[] {"mavlink", "stop", "-d", USB_DEVICE_PATH, NULL};
 				px4_exec(stop_argv[0], (char **)stop_argv, NULL, 0);
-				sched_unlock();
 
 				usb_auto_start_state = UsbAutoStartState::disconnecting;
 			}
diff --git a/platforms/nuttx/src/px4/common/tasks.cpp b/platforms/nuttx/src/px4/common/tasks.cpp
index 07fb3c17760d..b6988bcb3466 100644
--- a/platforms/nuttx/src/px4/common/tasks.cpp
+++ b/platforms/nuttx/src/px4/common/tasks.cpp
@@ -64,8 +64,6 @@
 
 int px4_task_spawn_cmd(const char *name, int scheduler, int priority, int stack_size, main_t entry, char *const argv[])
 {
-	sched_lock();
-
 #if !defined(CONFIG_DISABLE_ENVIRON) && !defined(CONFIG_BUILD_KERNEL)
 	/* None of the modules access the environment variables (via getenv() for instance), so delete them
 	 * all. They are only used within the startup script, and NuttX automatically exports them to the children
@@ -82,14 +80,6 @@ int px4_task_spawn_cmd(const char *name, int scheduler, int priority, int stack_
 	int pid = kthread_create(name, priority, stack_size, entry, argv);
 #endif
 
-	if (pid > 0) {
-		/* configure the scheduler */
-		struct sched_param param = { .sched_priority = priority };
-		sched_setscheduler(pid, scheduler, &param);
-	}
-
-	sched_unlock();
-
 	return pid;
 }