prot_fd           498 drivers/target/target_core_file.c 	struct file *prot_fd = fd_dev->fd_prot_file;
prot_fd           502 drivers/target/target_core_file.c 	if (!prot_fd) {
prot_fd           511 drivers/target/target_core_file.c 		ssize_t ret = kernel_write(prot_fd, buf, len, &pos);