From: Josh Triplett <josh@freedesktop.org>
Date: Fri, 30 Jun 2006 00:02:31 +0000 (-0700)
Subject: [IrDA]: Fix RCU lock pairing on error path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1bc1731133140dccdd08899a59bbc06d975d0a15;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

[IrDA]: Fix RCU lock pairing on error path

irlan_client_discovery_indication calls rcu_read_lock and rcu_read_unlock, but
returns without unlocking in an error case.  Fix that by replacing the return
with a goto so that the rcu_read_unlock always gets executed.

Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Samuel Ortiz samuel@sortiz.org <>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/irda/irlan/irlan_client.c b/net/irda/irlan/irlan_client.c
index f8e6cb0db04b..95cf1234ea17 100644
--- a/net/irda/irlan/irlan_client.c
+++ b/net/irda/irlan/irlan_client.c
@@ -173,13 +173,14 @@ void irlan_client_discovery_indication(discinfo_t *discovery,
 	rcu_read_lock();
 	self = irlan_get_any();
 	if (self) {
-		IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
+		IRDA_ASSERT(self->magic == IRLAN_MAGIC, goto out;);
 
 		IRDA_DEBUG(1, "%s(), Found instance (%08x)!\n", __FUNCTION__ ,
 		      daddr);
 		
 		irlan_client_wakeup(self, saddr, daddr);
 	}
+IRDA_ASSERT_LABEL(out:)
 	rcu_read_unlock();
 }