sftp: invalid free()

modules/access/sftp.c

@@ -172,9 +172,11 @@ static int Open( vlc_object_t* p_this )
     char *psz_home = config_GetUserDir( VLC_HOME_DIR );
     char *psz_knownhosts_file;
     if( asprintf( &psz_knownhosts_file, "%s/.ssh/known_hosts", psz_home ) != -1 )
+    {
         libssh2_knownhost_readfile( ssh_knownhosts, psz_knownhosts_file,
                 LIBSSH2_KNOWNHOST_FILE_OPENSSH );
-    free( psz_knownhosts_file );
+        free( psz_knownhosts_file );
+    }
     free( psz_home );
 
     const char *fingerprint = libssh2_session_hostkey( p_sys->ssh_session, &i_len, &i_type );