Re: [PATCH] USB: Removing NULL check for pool since dma_pool_destroy is safe

[Greg KH]

On Sat, Aug 04, 2018 at 12:10:22AM -0700, Salil Kapur wrote:
> Removing NULL check for pool since dma_pool_destroy is safe
> 
> Signed-off-by: Salil Kapur <salilkapur93@xxxxxxxxx>
> ---
>  drivers/usb/core/buffer.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
> index 77eef8acff94..f641342cdec0 100644
> --- a/drivers/usb/core/buffer.c
> +++ b/drivers/usb/core/buffer.c
> @@ -101,12 +101,8 @@ void hcd_buffer_destroy(struct usb_hcd *hcd)
>          return;
>  
>      for (i = 0; i < HCD_BUFFER_POOLS; i++) {
> -        struct dma_pool *pool = hcd->pool[i];
> -
> -        if (pool) {
> -            dma_pool_destroy(pool);
> -            hcd->pool[i] = NULL;
> -        }
> +        dma_pool_destroy(hcd->pool[i]);
> +        hcd->pool[i] = NULL;
>      }
>  }
>  
> -- 
> 2.14.4

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