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Revision 886e44c9298a6b428ae046e2fa092ca52e822e6a authored by Jiasheng Jiang on 14 March 2022, 02:01:25 UTC, committed by Jakub Kicinski on 16 March 2022, 04:57:53 UTC 
hv_netvsc: Add check for kvmalloc_array
 
As the potential failure of the kvmalloc_array(),
it should be better to check and restore the 'data'
if fails in order to avoid the dereference of the
NULL pointer.

Fixes: 6ae746711263 ("hv_netvsc: Add per-cpu ethtool stats for netvsc")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220314020125.2365084-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent e9c14b5
Raw File
sysfs.h 
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * fs/sysfs/sysfs.h - sysfs internal header file
 *
 * Copyright (c) 2001-3 Patrick Mochel
 * Copyright (c) 2007 SUSE Linux Products GmbH
 * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
 */

#ifndef __SYSFS_INTERNAL_H
#define __SYSFS_INTERNAL_H

#include <linux/sysfs.h>

/*
 * mount.c
 */
extern struct kernfs_node *sysfs_root_kn;

/*
 * dir.c
 */
extern spinlock_t sysfs_symlink_target_lock;

void sysfs_warn_dup(struct kernfs_node *parent, const char *name);

/*
 * file.c
 */
int sysfs_add_file_mode_ns(struct kernfs_node *parent,
		const struct attribute *attr, umode_t amode, kuid_t uid,
		kgid_t gid, const void *ns);
int sysfs_add_bin_file_mode_ns(struct kernfs_node *parent,
		const struct bin_attribute *battr, umode_t mode,
		kuid_t uid, kgid_t gid, const void *ns);

/*
 * symlink.c
 */
int sysfs_create_link_sd(struct kernfs_node *kn, struct kobject *target,
			 const char *name);

#endif	/* __SYSFS_INTERNAL_H */
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