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[media] DaVinci-VPIF-Display: Use kcalloc() in vpif_probe()

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

  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: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Markus Elfring 2016-10-12 10:30:44 -03:00 committed by Mauro Carvalho Chehab
parent c64d61df9a
commit d5cf467ece
1 changed files with 1 additions and 2 deletions
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3
drivers/media/platform/davinci/vpif_display.c
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@ -1274,8 +1274,7 @@ static __init int vpif_probe(struct platform_device *pdev)
vpif_obj.config = pdev->dev.platform_data;
subdev_count = vpif_obj.config->subdev_count;
subdevdata = vpif_obj.config->subdevinfo;
vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
GFP_KERNEL);
vpif_obj.sd = kcalloc(subdev_count, sizeof(*vpif_obj.sd), GFP_KERNEL);
if (vpif_obj.sd == NULL) {
vpif_err("unable to allocate memory for subdevice pointers\n");
err = -ENOMEM;