diff --git a/[refs] b/[refs]
index 0df7717edf25..55ac5dba6f20 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6f6c4dc040a6b4cbed02a57a78f5d08a86d84a38
+refs/heads/master: 47de87a234aac8b2121557f3903bb16bb678af67
diff --git a/trunk/drivers/staging/android/logger.c b/trunk/drivers/staging/android/logger.c
index 0d2367f2c15f..ea69b6a77dac 100644
--- a/trunk/drivers/staging/android/logger.c
+++ b/trunk/drivers/staging/android/logger.c
@@ -459,7 +459,12 @@ static int logger_release(struct inode *ignored, struct file *file)
 {
 	if (file->f_mode & FMODE_READ) {
 		struct logger_reader *reader = file->private_data;
+		struct logger_log *log = reader->log;
+
+		mutex_lock(&log->mutex);
 		list_del(&reader->list);
+		mutex_unlock(&log->mutex);
+
 		kfree(reader);
 	}