skopts: Prepare for xmalloc-able entries on SkOptsEntry

include/sockets.h

@@ -29,6 +29,7 @@ struct socket_desc {
 extern int dump_socket(struct fd_parms *p, int lfd, const struct cr_fdset *cr_fdset);
 extern int dump_socket_opts(int sk, SkOptsEntry *soe);
 extern int restore_socket_opts(int sk, SkOptsEntry *soe);
+extern void release_skopts(SkOptsEntry *);
 
 extern int sk_collect_one(int ino, int family, struct socket_desc *d);
 extern int collect_sockets(int pid);

sk-inet.c

@@ -299,6 +299,7 @@ static int do_dump_one_inet_fd(int lfd, u32 id, const struct fd_parms *p, int fa
 		break;
 	}
 err:
+	release_skopts(&skopts);
 	xfree(ie.src_addr);
 	xfree(ie.dst_addr);
 	return ret;

sk-packet.c

@@ -193,6 +193,7 @@ static int dump_one_packet_fd(int lfd, u32 id, const struct fd_parms *p)
 
 	ret = pb_write_one(fdset_fd(glob_fdset, CR_FD_PACKETSK), &psk, PB_PACKETSK);
 out:
+	release_skopts(&skopts);
 	xfree(psk.rx_ring);
 	xfree(psk.tx_ring);
 	for (i = 0; i < psk.n_mclist; i++)

sk-unix.c

@@ -232,6 +232,7 @@ static int dump_one_unix_fd(int lfd, u32 id, const struct fd_parms *p)
 	pr_info("Dumping unix socket at %d\n", p->fd);
 	show_one_unix("Dumping", sk);
 	show_one_unix_img("Dumped", &ue);
+	release_skopts(&skopts);
 
 	list_del_init(&sk->list);
 	sk->sd.already_dumped = 1;
@@ -239,6 +240,7 @@ static int dump_one_unix_fd(int lfd, u32 id, const struct fd_parms *p)
 	return 0;
 
 err:
+	release_skopts(&skopts);
 	return -1;
 }
 

sockets.c

@@ -231,6 +231,10 @@ int dump_socket_opts(int sk, SkOptsEntry *soe)
 	return ret;
 }
 
+void release_skopts(SkOptsEntry *soe)
+{
+}
+
 int dump_socket(struct fd_parms *p, int lfd, const struct cr_fdset *cr_fdset)
 {
 	int family;