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net: irda: init spinlock after memcpy

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irttp_dup() copies a tsap_cb struct, but does not initialize the
spinlock in the new structure, which confuses lockdep.

Signed-off-by: Deepak Saxena <dsaxena@mvista.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Deepak Saxena 2009-07-27 10:49:44 -07:00 committed by David S. Miller
parent 8bae1b2b13
commit 0cbb0a781a
1 changed files with 1 additions and 0 deletions
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1
net/irda/irttp.c
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@ -1453,6 +1453,7 @@ struct tsap_cb *irttp_dup(struct tsap_cb *orig, void *instance)
}
/* Dup */
memcpy(new, orig, sizeof(struct tsap_cb));
spin_lock_init(&new->lock);
/* We don't need the old instance any more */
spin_unlock_irqrestore(&irttp->tsaps->hb_spinlock, flags);