1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3009aafa4dde..ea11f4ebfae1 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -964,8 +964,10 @@ static void *s_start(struct seq_file *m, loff_t *pos)
 
         mutex_lock(&trace_types_lock);
 
-        if (!current_trace || current_trace != iter->trace)
+        if (!current_trace || current_trace != iter->trace) {
+                mutex_unlock(&trace_types_lock);
                 return NULL;
+        }
 
         atomic_inc(&trace_record_cmdline_disabled);