From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Sun, 23 Apr 2017 10:30:32 +0200

* Multiplications for the size determination of memory allocations
  indicated that array data structures should be processed.
  Thus use the corresponding function "devm_kcalloc".

  This issue was detected by using the Coccinelle software.

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

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/dma/k3dma.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index 01e25c68dd5a..31a51ee1a910 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -845,8 +845,8 @@ static int k3_dma_probe(struct platform_device *op)
                return -ENOMEM;
 
        /* init phy channel */
-       d->phy = devm_kzalloc(&op->dev,
-               d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL);
+       d->phy = devm_kcalloc(&op->dev, d->dma_channels, sizeof(*d->phy),
+                             GFP_KERNEL);
        if (d->phy == NULL)
                return -ENOMEM;
 
@@ -875,8 +875,8 @@ static int k3_dma_probe(struct platform_device *op)
        d->slave.copy_align = DMAENGINE_ALIGN_8_BYTES;
 
        /* init virtual channel */
-       d->chans = devm_kzalloc(&op->dev,
-               d->dma_requests * sizeof(struct k3_dma_chan), GFP_KERNEL);
+       d->chans = devm_kcalloc(&op->dev, d->dma_requests, sizeof(*d->chans),
+                               GFP_KERNEL);
        if (d->chans == NULL)
                return -ENOMEM;
 
-- 
2.12.2

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