[PATCH stable-28 1/3] NET: net_namespace, fix lock imbalance

[Jiri Slaby]

From: Jiri Slaby <jirislaby@xxxxxxxxx>

register_pernet_gen_subsys omits mutex_unlock in one fail path.
Fix it.

Commit 357f5b0b91054ae23385ea4b0634bb8b43736e83.

Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
---
 net/core/net_namespace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 1895a4c..0bc398c 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -342,8 +342,8 @@ again:
 	rv = register_pernet_operations(first_device, ops);
 	if (rv < 0)
 		ida_remove(&net_generic_ids, *id);
-	mutex_unlock(&net_mutex);
 out:
+	mutex_unlock(&net_mutex);
 	return rv;
 }
 EXPORT_SYMBOL_GPL(register_pernet_gen_subsys);
-- 
1.6.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/