kernel_optimize_test/drivers/lightnvm/lightnvm.h
Arnd Bergmann 1e3aeae4ea lightnvm: propagate device_add() error code
device_add() may fail, and all callers are supposed to check the
return value, but one new user in lightnvm doesn't:

drivers/lightnvm/sysfs.c: In function 'nvm_sysfs_register_dev':
drivers/lightnvm/sysfs.c:184:2: error: ignoring return value of 'device_add',
  declared with attribute warn_unused_result [-Werror=unused-result]

This changes the caller to propagate any error codes, which avoids
the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 38c9e260b9f9 ("lightnvm: expose device geometry through sysfs")
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-09-21 07:57:32 -06:00

36 lines
1.1 KiB
C

/*
* Copyright (C) 2016 CNEX Labs. All rights reserved.
* Initial release: Matias Bjorling <matias@cnexlabs.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
* USA.
*
*/
#ifndef LIGHTNVM_H
#define LIGHTNVM_H
#include <linux/lightnvm.h>
/* core -> sysfs.c */
int __must_check nvm_sysfs_register_dev(struct nvm_dev *);
void nvm_sysfs_unregister_dev(struct nvm_dev *);
int nvm_sysfs_register(void);
void nvm_sysfs_unregister(void);
/* sysfs > core */
void nvm_free(struct nvm_dev *);
#endif