[PATCH 3/4] ATM-ZeitNet: Replace one kzalloc() call by kcalloc()

SF Markus Elfring
2016-09-10T09:02:44Z

Date: Sat, 10 Sep 2016 10:21:15 +0200

* The script "checkpatch.pl" can point information out like the following.

WARNING: Prefer kcalloc over kzalloc with multiply

Thus fix the affected source code place.

* 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.

* Delete the local variable "size" which became unnecessary with
this refactoring.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/atm/zatm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 218c6af..2cc9e2a 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -598,12 +598,13 @@ static void close_rx(struct atm_vcc *vcc)
static int start_rx(struct atm_dev *dev)
{
struct zatm_dev *zatm_dev;
- int size,i;
+ int i;

DPRINTK("start_rx\n");
zatm_dev = ZATM_DEV(dev);
- size = sizeof(struct atm_vcc *)*zatm_dev->chans;
- zatm_dev->rx_map = kzalloc(size,GFP_KERNEL);
+ zatm_dev->rx_map = kcalloc(zatm_dev->chans,
+ sizeof(*zatm_dev->rx_map),
+ GFP_KERNEL);
if (!zatm_dev->rx_map) return -ENOMEM;
/* set VPI/VCI split (use all VCIs and give what's left to VPIs) */
zpokel(zatm_dev,(1 << dev->ci_range.vci_bits)-1,uPD98401_VRR);
--
2.10.0