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spi/mpc52xx: Use kmalloc_array() in mpc52xx_spi_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 "kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type 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>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Markus Elfring 2017-01-13 14:06:10 +01:00 committed by Mark Brown
parent fafd679407
commit 8b6c8955b5
1 changed files with 3 additions and 2 deletions
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5
drivers/spi/spi-mpc52xx.c
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@ -437,8 +437,9 @@ static int mpc52xx_spi_probe(struct platform_device *op)
ms->gpio_cs_count = of_gpio_count(op->dev.of_node);
if (ms->gpio_cs_count > 0) {
master->num_chipselect = ms->gpio_cs_count;
ms->gpio_cs = kmalloc(ms->gpio_cs_count * sizeof(unsigned int),
GFP_KERNEL);
ms->gpio_cs = kmalloc_array(ms->gpio_cs_count,
sizeof(*ms->gpio_cs),
GFP_KERNEL);
if (!ms->gpio_cs) {
rc = -ENOMEM;
goto err_alloc_gpio;