From: Samuel Ortiz <samuel@sortiz.org>
To: "Paul E. McKenney" <paulmck@us.ibm.com>,
"David S. Miller" <davem@davemloft.net>,
Josh Triplett <josht@vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org,
Dipkanar Sarma <dipankar@in.ibm.com>,
Andrew Morton <akpm@osdl.org>,
netdev@vger.kernel.org, irda-users@lists.sourceforge.net
Subject: [PATCH 1/2] [IrDA] Fix RCU lock pairing on error path
Date: Fri, 30 Jun 2006 09:55:34 +0300 [thread overview]
Message-ID: <20060630065534.GA4729@sortiz.org> (raw)
In-Reply-To: <20060629142741.GA1294@us.ibm.com>
Hi Dave,
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 <>
---
net/irda/irlan/irlan_client.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/irda/irlan/irlan_client.c b/net/irda/irlan/irlan_client.c
index f8e6cb0..95cf123 100644
--- a/net/irda/irlan/irlan_client.c
+++ b/net/irda/irlan/irlan_client.c
@@ -173,13 +173,14 @@ void irlan_client_discovery_indication(d
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();
}
--
1.4.0
next prev parent reply other threads:[~2006-06-29 23:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-29 0:56 [PATCH] irda: Fix RCU lock pairing on error path Josh Triplett
2006-06-29 14:27 ` Paul E. McKenney
2006-06-29 14:59 ` Samuel Ortiz
2006-06-30 6:55 ` Samuel Ortiz [this message]
2006-06-30 0:02 ` [PATCH 1/2] [IrDA] " David Miller
2006-06-29 19:48 ` [PATCH] irda: " David Miller
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