Revision 2e6e1fde32d7d41cf076c21060c329d3fdbce25c authored by Pavel Begunkov on 05 December 2019, 13:15:45 UTC, committed by Jens Axboe on 05 December 2019, 13:54:51 UTC
In case of an error io_submit_sqe() drops a request and continues without it, even if the request was a part of a link. Not only it doesn't cancel links, but also may execute wrong sequence of actions. Stop consuming sqes, and let the user handle errors. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 78076bb
hsi_boardinfo.c
// SPDX-License-Identifier: GPL-2.0-only
/*
* HSI clients registration interface
*
* Copyright (C) 2010 Nokia Corporation. All rights reserved.
*
* Contact: Carlos Chinea <carlos.chinea@nokia.com>
*/
#include <linux/hsi/hsi.h>
#include <linux/list.h>
#include <linux/slab.h>
#include "hsi_core.h"
/*
* hsi_board_list is only used internally by the HSI framework.
* No one else is allowed to make use of it.
*/
LIST_HEAD(hsi_board_list);
EXPORT_SYMBOL_GPL(hsi_board_list);
/**
* hsi_register_board_info - Register HSI clients information
* @info: Array of HSI clients on the board
* @len: Length of the array
*
* HSI clients are statically declared and registered on board files.
*
* HSI clients will be automatically registered to the HSI bus once the
* controller and the port where the clients wishes to attach are registered
* to it.
*
* Return -errno on failure, 0 on success.
*/
int __init hsi_register_board_info(struct hsi_board_info const *info,
unsigned int len)
{
struct hsi_cl_info *cl_info;
cl_info = kcalloc(len, sizeof(*cl_info), GFP_KERNEL);
if (!cl_info)
return -ENOMEM;
for (; len; len--, info++, cl_info++) {
cl_info->info = *info;
list_add_tail(&cl_info->list, &hsi_board_list);
}
return 0;
}
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