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[25/34,media] DaVinci-VPIF-Capture: Use kcalloc() in vpif_probe()

Message ID 506f65c8-645f-d408-433a-d716da0ab3bc@users.sourceforge.net (mailing list archive)
State New, archived
Headers show

Commit Message

SF Markus Elfring Oct. 12, 2016, 3:03 p.m. UTC 
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 12 Oct 2016 15:15:34 +0200

* 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>
---
 drivers/media/platform/davinci/vpif_capture.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 5104cc0..fb9e850 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1464,8 +1464,7 @@  static __init int vpif_probe(struct platform_device *pdev)
 	vpif_obj.config = pdev->dev.platform_data;
 
 	subdev_count = vpif_obj.config->subdev_count;
-	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;