Calling function "lstat" to perform check on "path".
   77    ret = lstat(path, &stat_buf);
At conditional (1): "ret == -1" taking the false branch.
   78    if (ret == -1) {
   79        if (errno == ENOENT) {
   80            DEBUG(7, ("Proc file [%s] is not available anymore, continuing.\n",
   81                      path));
   82            return EOK;
   83        }
   84        DEBUG(1, ("lstat failed [%d][%s].\n", errno, strerror(errno)));
   85        return errno;
   86    }
   87
At conditional (2): "!((stat_buf.st_mode & 0xf000U) == 0x8000U)" taking the false branch.
   88    if (!S_ISREG(stat_buf.st_mode)) {
   89        DEBUG(1, ("not a regular file\n"));
   90        return EINVAL;
   91    }
   92
Calling function "open" that uses "path" after a check function. This can cause a time-of-check, time-of-use race condition.
   93    fd = open(path, O_RDONLY);