diff --git a/library/threading.c b/library/threading.c
index cd9942b..130c696 100644
--- a/library/threading.c
+++ b/library/threading.c
@@ -40,9 +40,9 @@
 #endif /* !_WIN32 && (unix || __unix || __unix__ ||
         * (__APPLE__ && __MACH__)) */
 
-#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) ||     \
-       ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) &&                     \
-         _POSIX_THREAD_SAFE_FUNCTIONS >= 200112L ) )
+#if !((defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L) ||     \
+    (defined(_POSIX_THREAD_SAFE_FUNCTIONS) &&                     \
+    _POSIX_THREAD_SAFE_FUNCTIONS >= 200112L))
 /*
  * This is a convenience shorthand macro to avoid checking the long
  * preprocessor conditions above. Ideally, we could expose this macro in
@@ -51,21 +51,22 @@
  * we keep it private by only defining it in this file
  */
 
-#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
+#if !(defined(_WIN32) && !defined(EFIX64) && !defined(EFI32))
 #define THREADING_USE_GMTIME
 #endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */
 
-#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) ||     \
-             ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) &&                     \
+#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
+             ( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
                 _POSIX_THREAD_SAFE_FUNCTIONS >= 200112L ) ) */
 
 #endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */
 
 #if defined(MBEDTLS_THREADING_PTHREAD)
-static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
+static void threading_mutex_init_pthread(mbedtls_threading_mutex_t *mutex)
 {
-    if( mutex == NULL )
+    if (mutex == NULL) {
         return;
+    }
 
     /* A nonzero value of is_valid indicates a successfully initialized
      * mutex. This is a workaround for not being able to return an error
@@ -73,44 +74,49 @@
      * if is_valid is nonzero. The Mbed TLS unit test code uses this field
      * to distinguish more states of the mutex; see
      * tests/src/threading_helpers for details. */
-    mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0;
+    mutex->is_valid = pthread_mutex_init(&mutex->mutex, NULL) == 0;
 }
 
-static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex )
+static void threading_mutex_free_pthread(mbedtls_threading_mutex_t *mutex)
 {
-    if( mutex == NULL || !mutex->is_valid )
+    if (mutex == NULL || !mutex->is_valid) {
         return;
+    }
 
-    (void) pthread_mutex_destroy( &mutex->mutex );
+    (void) pthread_mutex_destroy(&mutex->mutex);
     mutex->is_valid = 0;
 }
 
-static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex )
+static int threading_mutex_lock_pthread(mbedtls_threading_mutex_t *mutex)
 {
-    if( mutex == NULL || ! mutex->is_valid )
-        return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
+    if (mutex == NULL || !mutex->is_valid) {
+        return MBEDTLS_ERR_THREADING_BAD_INPUT_DATA;
+    }
 
-    if( pthread_mutex_lock( &mutex->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+    if (pthread_mutex_lock(&mutex->mutex) != 0) {
+        return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
 
-    return( 0 );
+    return 0;
 }
 
-static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex )
+static int threading_mutex_unlock_pthread(mbedtls_threading_mutex_t *mutex)
 {
-    if( mutex == NULL || ! mutex->is_valid )
-        return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
+    if (mutex == NULL || !mutex->is_valid) {
+        return MBEDTLS_ERR_THREADING_BAD_INPUT_DATA;
+    }
 
-    if( pthread_mutex_unlock( &mutex->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+    if (pthread_mutex_unlock(&mutex->mutex) != 0) {
+        return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
 
-    return( 0 );
+    return 0;
 }
 
-void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread;
-void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread;
-int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread;
-int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread;
+void (*mbedtls_mutex_init)(mbedtls_threading_mutex_t *) = threading_mutex_init_pthread;
+void (*mbedtls_mutex_free)(mbedtls_threading_mutex_t *) = threading_mutex_free_pthread;
+int (*mbedtls_mutex_lock)(mbedtls_threading_mutex_t *) = threading_mutex_lock_pthread;
+int (*mbedtls_mutex_unlock)(mbedtls_threading_mutex_t *) = threading_mutex_unlock_pthread;
 
 /*
  * With pthreads we can statically initialize mutexes
@@ -120,29 +126,29 @@
 #endif /* MBEDTLS_THREADING_PTHREAD */
 
 #if defined(MBEDTLS_THREADING_ALT)
-static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex )
+static int threading_mutex_fail(mbedtls_threading_mutex_t *mutex)
 {
-    ((void) mutex );
-    return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
+    ((void) mutex);
+    return MBEDTLS_ERR_THREADING_BAD_INPUT_DATA;
 }
-static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex )
+static void threading_mutex_dummy(mbedtls_threading_mutex_t *mutex)
 {
-    ((void) mutex );
+    ((void) mutex);
     return;
 }
 
-void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
-void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
-int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
-int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
+void (*mbedtls_mutex_init)(mbedtls_threading_mutex_t *) = threading_mutex_dummy;
+void (*mbedtls_mutex_free)(mbedtls_threading_mutex_t *) = threading_mutex_dummy;
+int (*mbedtls_mutex_lock)(mbedtls_threading_mutex_t *) = threading_mutex_fail;
+int (*mbedtls_mutex_unlock)(mbedtls_threading_mutex_t *) = threading_mutex_fail;
 
 /*
  * Set functions pointers and initialize global mutexes
  */
-void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
-                       void (*mutex_free)( mbedtls_threading_mutex_t * ),
-                       int (*mutex_lock)( mbedtls_threading_mutex_t * ),
-                       int (*mutex_unlock)( mbedtls_threading_mutex_t * ) )
+void mbedtls_threading_set_alt(void (*mutex_init)(mbedtls_threading_mutex_t *),
+                               void (*mutex_free)(mbedtls_threading_mutex_t *),
+                               int (*mutex_lock)(mbedtls_threading_mutex_t *),
+                               int (*mutex_unlock)(mbedtls_threading_mutex_t *))
 {
     mbedtls_mutex_init = mutex_init;
     mbedtls_mutex_free = mutex_free;
@@ -150,23 +156,23 @@
     mbedtls_mutex_unlock = mutex_unlock;
 
 #if defined(MBEDTLS_FS_IO)
-    mbedtls_mutex_init( &mbedtls_threading_readdir_mutex );
+    mbedtls_mutex_init(&mbedtls_threading_readdir_mutex);
 #endif
 #if defined(THREADING_USE_GMTIME)
-    mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex );
+    mbedtls_mutex_init(&mbedtls_threading_gmtime_mutex);
 #endif
 }
 
 /*
  * Free global mutexes
  */
-void mbedtls_threading_free_alt( void )
+void mbedtls_threading_free_alt(void)
 {
 #if defined(MBEDTLS_FS_IO)
-    mbedtls_mutex_free( &mbedtls_threading_readdir_mutex );
+    mbedtls_mutex_free(&mbedtls_threading_readdir_mutex);
 #endif
 #if defined(THREADING_USE_GMTIME)
-    mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex );
+    mbedtls_mutex_free(&mbedtls_threading_gmtime_mutex);
 #endif
 }
 #endif /* MBEDTLS_THREADING_ALT */