irttp: Use kmemdup rather than duplicating its implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 3 deletions

diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 32e3bb026110..5c93f2952b08 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -1461,14 +1461,12 @@ struct tsap_cb *irttp_dup(struct tsap_cb *orig, void *instance)
         }
 
         /* Allocate a new instance */
-        new = kmalloc(sizeof(struct tsap_cb), GFP_ATOMIC);
+        new = kmemdup(orig, sizeof(struct tsap_cb), GFP_ATOMIC);
         if (!new) {
                 IRDA_DEBUG(0, "%s(), unable to kmalloc\n", __func__);
                 spin_unlock_irqrestore(&irttp->tsaps->hb_spinlock, flags);
                 return NULL;
         }
-        /* Dup */
-        memcpy(new, orig, sizeof(struct tsap_cb));
         spin_lock_init(&new->lock);
 
         /* We don't need the old instance any more */