Fix some vulnerability (Null Pointer Dereference) defects

[platform/core/multimedia/libmm-sound.git] / mm_sound_device.c

diff --git a/mm_sound_device.c b/mm_sound_device.c
index ebcfddc..ad2fa62 100644 (file)
--- a/mm_sound_device.c
+++ b/mm_sound_device.c
@@ -30,8 +30,8 @@
 
 #define VOLUME_TYPE_LEN 64
 
-mm_sound_device_list_t g_device_list;
-pthread_mutex_t g_thread_mutex = PTHREAD_MUTEX_INITIALIZER;
+static mm_sound_device_list_t g_device_list;
+static pthread_mutex_t g_thread_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static int _check_for_valid_mask(int flags)
 {