Re: [PATCH] staging: comedi: das1800: prefer kmalloc_array over kmalloc with multiply

From: Ian Abbott
Date: Tue Jan 20 2015 - 06:04:12 EST


On 20/01/15 02:42, Chase Southwood wrote:
Checkpatch doesn't like kmalloc with multiply very much:
drivers/staging/comedi/drivers/das1800.c:1377: WARNING: Prefer kmalloc_array over kmalloc with multiply

So this patch swaps that use out for kmalloc_array instead.

Signed-off-by: Chase Southwood <chase.southwood@xxxxxxxxx>
---
drivers/staging/comedi/drivers/das1800.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 381ae94..13ed31c 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -1374,7 +1374,7 @@ static int das1800_attach(struct comedi_device *dev,
if (dev->irq & it->options[2])
das1800_init_dma(dev, it);

- devpriv->fifo_buf = kmalloc(FIFO_SIZE * sizeof(uint16_t), GFP_KERNEL);
+ devpriv->fifo_buf = kmalloc_array(FIFO_SIZE, sizeof(uint16_t), GFP_KERNEL);
if (!devpriv->fifo_buf)
return -ENOMEM;



Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>

--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Web: http://www.mev.co.uk/ )=-
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