Patch "netfilter: x_tables: unlock on error in xt_find_table_lock()" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

netfilter: x_tables: unlock on error in xt_find_table_lock()

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
netfilter-x_tables-unlock-on-error-in-xt_find_table_lock.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Dan Carpenter <[email protected]>
Date: Fri, 28 Apr 2017 15:57:56 +0300
Subject: netfilter: x_tables: unlock on error in xt_find_table_lock()

From: Dan Carpenter <[email protected]>

[ Upstream commit 7dde07e9c53617549d67dd3e1d791496d0d3868e ]

According to my static checker we should unlock here before the return. That seems reasonable to me as well.

Fixes" b9e69e127397 ("netfilter: xtables: don't hook tables by default")

---
 net/netfilter/x_tables.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

@@ -1006,8 +1006,10 @@ struct xt_table *xt_find_table_lock(stru
 	list_for_each_entry(t, &init_net.xt.tables[af], list) {
 		if (strcmp(t->name, name))
 			continue;
-		if (!try_module_get(t->me))
+		if (!try_module_get(t->me)) {
+			mutex_unlock(&xt[af].mutex);
 			return NULL;
+		}
 
 		mutex_unlock(&xt[af].mutex);
 		if (t->table_init(net) != 0) {

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/netfilter-x_tables-unlock-on-error-in-xt_find_table_lock.patch queue-4.9/asoc-intel-skylake-uninitialized-variable-in-probe_codec.patch queue-4.9/mmc-host-omap_hsmmc-checking-for-null-instead-of-is_err.patch queue-4.9/qed-unlock-on-error-in-qed_vf_pf_acquire.patch queue-4.9/hsi-ssi_protocol-double-free-in-ssip_pn_xmit.patch queue-4.9/cifs-small-underflow-in-cnvrtdosunixtm.patch queue-4.9/ib-rdmavt-restore-irqs-on-error-path-in-rvt_create_ah.patch