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iio: Use kmalloc_array() in iio_scan_mask_set()

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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 "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Markus Elfring 2016-09-23 22:30:32 +02:00 committed by Jonathan Cameron
parent 1b14adcaf6
commit 057ac1acdf
1 changed files with 3 additions and 4 deletions
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7
drivers/iio/industrialio-buffer.c
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@ -307,10 +307,9 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev,
const unsigned long *mask; const unsigned long *mask;
unsigned long *trialmask; unsigned long *trialmask;
trialmask = kmalloc(sizeof(*trialmask)* trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength),
BITS_TO_LONGS(indio_dev->masklength), sizeof(*trialmask),
GFP_KERNEL); GFP_KERNEL);
if (trialmask == NULL) if (trialmask == NULL)
return -ENOMEM; return -ENOMEM;
if (!indio_dev->masklength) { if (!indio_dev->masklength) {