780 static void sbefifo_release_command(struct sbefifo_user *user)  in sbefifo_release_command()  argument
782 	if (is_vmalloc_addr(user->pending_cmd))  in sbefifo_release_command()
783 		vfree(user->pending_cmd);  in sbefifo_release_command()
784 	user->pending_cmd = NULL;  in sbefifo_release_command()
785 	user->pending_len = 0;  in sbefifo_release_command()
791 	struct sbefifo_user *user;  in sbefifo_user_open()  local
793 	user = kzalloc(sizeof(struct sbefifo_user), GFP_KERNEL);  in sbefifo_user_open()
794 	if (!user)  in sbefifo_user_open()
797 	file->private_data = user;  in sbefifo_user_open()
798 	user->sbefifo = sbefifo;  in sbefifo_user_open()
799 	user->cmd_page = (void *)__get_free_page(GFP_KERNEL);  in sbefifo_user_open()
800 	if (!user->cmd_page) {  in sbefifo_user_open()
801 		kfree(user);  in sbefifo_user_open()
804 	mutex_init(&user->file_lock);  in sbefifo_user_open()
805 	user->read_timeout_ms = SBEFIFO_TIMEOUT_START_RSP;  in sbefifo_user_open()
813 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_read()  local
820 	if (!user)  in sbefifo_user_read()
822 	sbefifo = user->sbefifo;  in sbefifo_user_read()
826 	mutex_lock(&user->file_lock);  in sbefifo_user_read()
829 	if (user->pending_len == 0) {  in sbefifo_user_read()
833 	if (user->pending_len < 8) {  in sbefifo_user_read()
837 	cmd_len = user->pending_len >> 2;  in sbefifo_user_read()
848 	sbefifo->timeout_start_rsp_ms = user->read_timeout_ms;  in sbefifo_user_read()
849 	rc = __sbefifo_submit(sbefifo, user->pending_cmd, cmd_len, &resp_iter);  in sbefifo_user_read()
858 	sbefifo_release_command(user);  in sbefifo_user_read()
859 	mutex_unlock(&user->file_lock);  in sbefifo_user_read()
866 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_write()  local
870 	if (!user)  in sbefifo_user_write()
872 	sbefifo = user->sbefifo;  in sbefifo_user_write()
878 	mutex_lock(&user->file_lock);  in sbefifo_user_write()
882 		user->pending_cmd = user->cmd_page;  in sbefifo_user_write()
884 		user->pending_cmd = vmalloc(len);  in sbefifo_user_write()
885 	if (!user->pending_cmd) {  in sbefifo_user_write()
891 	if (copy_from_user(user->pending_cmd, buf, len)) {  in sbefifo_user_write()
897 	if (len == 4 && be32_to_cpu(*(__be32 *)user->pending_cmd) ==  in sbefifo_user_write()
901 		user->pending_len = 0;  in sbefifo_user_write()
907 		rc = sbefifo_request_reset(user->sbefifo);  in sbefifo_user_write()
915 	user->pending_len = len;  in sbefifo_user_write()
917 	if (!user->pending_len)  in sbefifo_user_write()
918 		sbefifo_release_command(user);  in sbefifo_user_write()
920 	mutex_unlock(&user->file_lock);  in sbefifo_user_write()
928 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_release()  local
930 	if (!user)  in sbefifo_user_release()
933 	sbefifo_release_command(user);  in sbefifo_user_release()
934 	free_page((unsigned long)user->cmd_page);  in sbefifo_user_release()
935 	kfree(user);  in sbefifo_user_release()
940 static int sbefifo_read_timeout(struct sbefifo_user *user, void __user *argp)  in sbefifo_read_timeout()  argument
942 	struct device *dev = &user->sbefifo->dev;  in sbefifo_read_timeout()
949 		user->read_timeout_ms = SBEFIFO_TIMEOUT_START_RSP;  in sbefifo_read_timeout()
950 		dev_dbg(dev, "Timeout reset to %d\n", user->read_timeout_ms);  in sbefifo_read_timeout()
957 	user->read_timeout_ms = timeout * 1000; /* user timeout is in sec */  in sbefifo_read_timeout()
959 	dev_dbg(dev, "Timeout set to %d\n", user->read_timeout_ms);  in sbefifo_read_timeout()
966 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_ioctl()  local
969 	if (!user)  in sbefifo_user_ioctl()
972 	mutex_lock(&user->file_lock);  in sbefifo_user_ioctl()
975 		rc = sbefifo_read_timeout(user, (void __user *)arg);  in sbefifo_user_ioctl()
978 	mutex_unlock(&user->file_lock);  in sbefifo_user_ioctl()