[ATM]: [drivers] kill pointless NULL checks and casts before kfree()

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 47a800519ad0..8d5e65cb9755 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -902,7 +902,7 @@ static void close_tx(struct atm_vcc *vcc)
                 zatm_dev->tx_bw += vcc->qos.txtp.min_pcr;
                 dealloc_shaper(vcc->dev,zatm_vcc->shaper);
         }
-        if (zatm_vcc->ring) kfree(zatm_vcc->ring);
+        kfree(zatm_vcc->ring);
 }
 
 
@@ -1339,12 +1339,9 @@ static int __init zatm_start(struct atm_dev *dev)
         return 0;
     out:
         for (i = 0; i < NR_MBX; i++)
-                if (zatm_dev->mbx_start[i] != 0)
-                        kfree((void *) zatm_dev->mbx_start[i]);
-        if (zatm_dev->rx_map != NULL)
-                kfree(zatm_dev->rx_map);
-        if (zatm_dev->tx_map != NULL)
-                kfree(zatm_dev->tx_map);
+                kfree(zatm_dev->mbx_start[i]);
+        kfree(zatm_dev->rx_map);
+        kfree(zatm_dev->tx_map);
         free_irq(zatm_dev->irq, dev);
         return error;
 }