diff --git a/libavformat/network.c b/libavformat/network.c
index 9f02ec6c51..e9eab297e2 100644
--- a/libavformat/network.c
+++ b/libavformat/network.c
@@ -66,7 +66,7 @@ GCRY_THREAD_OPTION_PTHREAD_IMPL;
 #endif
 #endif
 
-void ff_tls_init(void)
+int ff_tls_init(void)
 {
     avpriv_lock_avformat();
 #if CONFIG_OPENSSL
@@ -77,6 +77,8 @@ void ff_tls_init(void)
         if (!CRYPTO_get_locking_callback()) {
             int i;
             openssl_mutexes = av_malloc_array(sizeof(pthread_mutex_t), CRYPTO_num_locks());
+            if (!openssl_mutexes)
+                return AVERROR(ENOMEM);
             for (i = 0; i < CRYPTO_num_locks(); i++)
                 pthread_mutex_init(&openssl_mutexes[i], NULL);
             CRYPTO_set_locking_callback(openssl_lock);
@@ -96,6 +98,8 @@ void ff_tls_init(void)
     gnutls_global_init();
 #endif
     avpriv_unlock_avformat();
+
+    return 0;
 }
 
 void ff_tls_deinit(void)
diff --git a/libavformat/network.h b/libavformat/network.h
index 0d1081ad1f..86fb656164 100644
--- a/libavformat/network.h
+++ b/libavformat/network.h
@@ -78,7 +78,7 @@ extern int ff_network_inited_globally;
 int ff_network_init(void);
 void ff_network_close(void);
 
-void ff_tls_init(void);
+int ff_tls_init(void);
 void ff_tls_deinit(void);
 
 int ff_network_wait_fd(int fd, int write);
diff --git a/libavformat/tls.c b/libavformat/tls.c
index d6a6be3e1e..942083bac9 100644
--- a/libavformat/tls.c
+++ b/libavformat/tls.c
@@ -175,7 +175,8 @@ static int tls_open(URLContext *h, const char *uri, int flags)
     const char *proxy_path;
     int use_proxy;
 
-    ff_tls_init();
+    if ((ret = ff_tls_init()) < 0)
+        return ret;
 
     if (c->listen)
         snprintf(opts, sizeof(opts), "?listen=1");
diff --git a/libavformat/utils.c b/libavformat/utils.c
index bbb1cf766d..570603a725 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -4095,7 +4095,8 @@ int avformat_network_init(void)
     ff_network_inited_globally = 1;
     if ((ret = ff_network_init()) < 0)
         return ret;
-    ff_tls_init();
+    if ((ret = ff_tls_init()) < 0)
+        return ret;
 #endif
     return 0;
 }