net: avoid NULL deref in inet_ctl_sock_destroy()

[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / include / net / inet_common.h

#ifndef _INET_COMMON_H
#define _INET_COMMON_H

extern const struct proto_ops inet_stream_ops;
extern const struct proto_ops inet_dgram_ops;

/*
 *	INET4 prototypes used by INET6
 */

struct msghdr;
struct sock;
struct sockaddr;
struct socket;

extern int inet_release(struct socket *sock);
extern int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
			       int addr_len, int flags);
extern int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
				 int addr_len, int flags);
extern int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
			      int addr_len, int flags);
extern int inet_accept(struct socket *sock, struct socket *newsock, int flags);
extern int inet_sendmsg(struct kiocb *iocb, struct socket *sock,
			struct msghdr *msg, size_t size);
extern ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
			     size_t size, int flags);
extern int inet_recvmsg(struct kiocb *iocb, struct socket *sock,
			struct msghdr *msg, size_t size, int flags);
extern int inet_shutdown(struct socket *sock, int how);
extern int inet_listen(struct socket *sock, int backlog);
extern void inet_sock_destruct(struct sock *sk);
extern int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
extern int inet_getname(struct socket *sock, struct sockaddr *uaddr,
			int *uaddr_len, int peer);
extern int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
extern int inet_ctl_sock_create(struct sock **sk, unsigned short family,
				unsigned short type, unsigned char protocol,
				struct net *net);

static inline void inet_ctl_sock_destroy(struct sock *sk)
{
	if (sk)
		sk_release_kernel(sk);
}

#endif