[LLC]: Use refcounting with struct llc_sap
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index ad9aad8..a75b8f2 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -21,6 +21,7 @@
* See the GNU General Public License for more details.
*/
#include <linux/config.h>
+#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/rtnetlink.h>
@@ -188,10 +189,6 @@
if (!sock_flag(sk, SOCK_ZAPPED))
llc_sap_remove_socket(llc->sap, sk);
release_sock(sk);
- if (llc->sap && hlist_empty(&llc->sap->sk_list.list)) {
- llc_release_sockets(llc->sap);
- llc_sap_close(llc->sap);
- }
if (llc->dev)
dev_put(llc->dev);
sock_put(sk);
@@ -220,6 +217,7 @@
llc_ui_sap_last_autoport = i + 2;
goto out;
}
+ llc_sap_put(sap);
}
llc_ui_sap_last_autoport = LLC_SAP_DYN_START;
tries++;
@@ -310,6 +308,7 @@
rc = -EBUSY; /* some other network layer is using the sap */
if (!sap)
goto out;
+ llc_sap_hold(sap);
} else {
struct llc_addr laddr, daddr;
struct sock *ask;
@@ -326,7 +325,7 @@
ask = llc_lookup_established(sap, &daddr, &laddr);
if (ask) {
sock_put(ask);
- goto out;
+ goto out_put;
}
}
llc->laddr.lsap = addr->sllc_sap;
@@ -336,6 +335,8 @@
llc_sap_add_socket(sap, sk);
sock_reset_flag(sk, SOCK_ZAPPED);
rc = 0;
+out_put:
+ llc_sap_put(sap);
out:
return rc;
}