static struct socket *sock_from_file(struct file *file, int *err)
{
- struct inode *inode;
- struct socket *sock;
-
if (file->f_op == &socket_file_ops)
return file->private_data; /* set in sock_map_fd */
- inode = file->f_path.dentry->d_inode;
- if (!S_ISSOCK(inode->i_mode)) {
- *err = -ENOTSOCK;
- return NULL;
- }
-
- sock = SOCKET_I(inode);
- if (sock->file != file) {
- printk(KERN_ERR "socki_lookup: socket file changed!\n");
- sock->file = file;
- }
- return sock;
+ *err = -ENOTSOCK;
+ return NULL;
}
/**
struct file *sock_file;
sock_file = fget_light(fd, &fput_needed);
+ err = -EBADF;
if (!sock_file)
- return -EBADF;
+ goto out;
sock = sock_from_file(sock_file, &err);
if (!sock)
out_put:
fput_light(sock_file, fput_needed);
+out:
return err;
}
int fput_needed;
sock_file = fget_light(fd, &fput_needed);
+ err = -EBADF;
if (!sock_file)
- return -EBADF;
+ goto out;
sock = sock_from_file(sock_file, &err);
if (!sock)
- goto out;
+ goto out_put;
msg.msg_control = NULL;
msg.msg_controllen = 0;
if (err2 < 0)
err = err2;
}
-out:
+out_put:
fput_light(sock_file, fput_needed);
+out:
return err;
}