Messages in this thread Patch in this message |  | | Subject | [PATCH 1/2] dmaengine: zx: Use devm_kcalloc() in zx_dma_probe() | From | SF Markus Elfring <> | Date | Sat, 22 Apr 2017 22:31:27 +0200 |
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From: Markus Elfring <elfring@users.sourceforge.net> Date: Sat, 22 Apr 2017 22:00:10 +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 <elfring@users.sourceforge.net> --- drivers/dma/zx_dma.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c index 2bb695315300..4f7587a100ea 100644 --- a/drivers/dma/zx_dma.c +++ b/drivers/dma/zx_dma.c @@ -798,8 +798,8 @@ static int zx_dma_probe(struct platform_device *op) return -ENOMEM; /* init phy channel */ - d->phy = devm_kzalloc(&op->dev, - d->dma_channels * sizeof(struct zx_dma_phy), GFP_KERNEL); + d->phy = devm_kcalloc(&op->dev, d->dma_channels, sizeof(*d->phy), + GFP_KERNEL); if (!d->phy) return -ENOMEM; @@ -834,8 +834,8 @@ static int zx_dma_probe(struct platform_device *op) d->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; /* init virtual channel */ - d->chans = devm_kzalloc(&op->dev, - d->dma_requests * sizeof(struct zx_dma_chan), GFP_KERNEL); + d->chans = devm_kcalloc(&op->dev, d->dma_requests, sizeof(*d->chans), + GFP_KERNEL); if (!d->chans) return -ENOMEM; -- 2.12.2
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