diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index 9d55e104400c8670b557574ca8c3f2d63389b996..1caca7376e747317e9564ebea5a32706a030e105 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -218,8 +218,8 @@ stm_output_disclaim(struct stm_device *stm, struct stm_output *output)
 	bitmap_release_region(&master->chan_map[0], output->channel,
 			      ilog2(output->nr_chans));
 
-	output->nr_chans = 0;
 	master->nr_free += output->nr_chans;
+	output->nr_chans = 0;
 }
 
 /*