Re: [PATCH 1/5] drm/amdgpu: Use kmalloc_array() in amdgpu_debugfs_gca_config_read()

Alex Deucher
2016-09-19T17:25:50Z

On Sun, Sep 18, 2016 at 12:50 PM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sun, 18 Sep 2016 17:00:52 +0200
>
> 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>

Applied. thanks.

> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index df7ab245..2709ebd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -2438,7 +2438,7 @@ static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf,
> if (size & 0x3 || *pos & 0x3)
> return -EINVAL;
>
> - config = kmalloc(256 * sizeof(*config), GFP_KERNEL);
> + config = kmalloc_array(256, sizeof(*config), GFP_KERNEL);
> if (!config)
> return -ENOMEM;
>
> --
> 2.10.0
>
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