ATM-ZeitNet: Use kmalloc_array() in start_tx()

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index cecfb943762f..d378ff2d3925 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -998,8 +998,9 @@ static int start_tx(struct atm_dev *dev)
 
         DPRINTK("start_tx\n");
         zatm_dev = ZATM_DEV(dev);
-        zatm_dev->tx_map = kmalloc(sizeof(struct atm_vcc *)*
-            zatm_dev->chans,GFP_KERNEL);
+        zatm_dev->tx_map = kmalloc_array(zatm_dev->chans,
+                                         sizeof(*zatm_dev->tx_map),
+                                         GFP_KERNEL);
         if (!zatm_dev->tx_map) return -ENOMEM;
         zatm_dev->tx_bw = ATM_OC3_PCR;
         zatm_dev->free_shapers = (1 << NR_SHAPERS)-1;