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hwrng: n2 - Use devm_kcalloc() in n2rng_probe()

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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 "devm_kcalloc".

* Replace the specification of a data structure 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>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Markus Elfring 2017-04-19 10:30:47 +02:00 committed by Herbert Xu
parent ec1bca941a
commit b2a1d27179
1 changed files with 1 additions and 3 deletions
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4
drivers/char/hw_random/n2-drv.c
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@ -748,9 +748,7 @@ static int n2rng_probe(struct platform_device *op)
dev_info(&op->dev, "Registered RNG HVAPI major %lu minor %lu\n",
np->hvapi_major, np->hvapi_minor);
np->units = devm_kzalloc(&op->dev,
sizeof(struct n2rng_unit) * np->num_units,
np->units = devm_kcalloc(&op->dev, np->num_units, sizeof(*np->units),
GFP_KERNEL);
err = -ENOMEM;
if (!np->units)