[PATCH] drm/amd: use kmalloc_array over kmalloc with multiply

[PATCH] drm/amd: use kmalloc_array over kmalloc with multiply

[Bernard Zhao]

Fix patch check warning:
WARNING: Prefer kmalloc_array over kmalloc with multiply
+	buf = kmalloc(MAX_KFIFO_SIZE * sizeof(*buf), GFP_KERNEL);

Signed-off-by: Bernard Zhao <bernard@vivo.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
index 17d1736367ea..246522423559 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
@@ -81,7 +81,7 @@ static ssize_t kfd_smi_ev_read(struct file *filep, char __user *user,
 	struct kfd_smi_client *client = filep->private_data;
 	unsigned char *buf;
 
-	buf = kmalloc(MAX_KFIFO_SIZE * sizeof(*buf), GFP_KERNEL);
+	buf = kmalloc_array(MAX_KFIFO_SIZE, sizeof(*buf), GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
-- 
2.31.0

Re: [PATCH] drm/amd: use kmalloc_array over kmalloc with multiply

[Alex Deucher]

Applied.  Thanks!

On Wed, Mar 31, 2021 at 9:36 AM Bernard Zhao <bernard@vivo.com> wrote:
>
> Fix patch check warning:
> WARNING: Prefer kmalloc_array over kmalloc with multiply
> +       buf = kmalloc(MAX_KFIFO_SIZE * sizeof(*buf), GFP_KERNEL);
>
> Signed-off-by: Bernard Zhao <bernard@vivo.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
> index 17d1736367ea..246522423559 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
> @@ -81,7 +81,7 @@ static ssize_t kfd_smi_ev_read(struct file *filep, char __user *user,
>         struct kfd_smi_client *client = filep->private_data;
>         unsigned char *buf;
>
> -       buf = kmalloc(MAX_KFIFO_SIZE * sizeof(*buf), GFP_KERNEL);
> +       buf = kmalloc_array(MAX_KFIFO_SIZE, sizeof(*buf), GFP_KERNEL);
>         if (!buf)
>                 return -ENOMEM;
>
> --
> 2.31.0
>
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