Re: [PATCH] drm/bridge: dw-mipi-dsi: Use kmemdup cf. kmalloc+memcpy

[Neil Armstrong]

On 09/09/2020 21:02, Alex Dewar wrote:
> kmemdup can be used instead of kmalloc+memcpy. Replace an occurrence of
> this pattern.
> 
> Issue identified with Coccinelle.
> 
> Signed-off-by: Alex Dewar <alex.dewar90@xxxxxxxxx>
> ---
>  drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> index 52f5c5a2ed64..7e9a62ad56e8 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> @@ -1049,12 +1049,10 @@ static void debugfs_create_files(void *data)
>  	};
>  	int i;
>  
> -	dsi->debugfs_vpg = kmalloc(sizeof(debugfs), GFP_KERNEL);
> +	dsi->debugfs_vpg = kmemdup(debugfs, sizeof(debugfs), GFP_KERNEL);
>  	if (!dsi->debugfs_vpg)
>  		return;
>  
> -	memcpy(dsi->debugfs_vpg, debugfs, sizeof(debugfs));
> -
>  	for (i = 0; i < ARRAY_SIZE(debugfs); i++)
>  		debugfs_create_file(dsi->debugfs_vpg[i].name, 0644,
>  				    dsi->debugfs, &dsi->debugfs_vpg[i],
> 

Acked-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>

Thanks,
Neil