On Wed, Dec 2, 2015 at 9:43 PM, Geyslan G. Bem <geyslan@xxxxxxxxx> wrote:
> Replace dma_pool_alloc and memset with a single call to dma_pool_zalloc.
>
> Caught by coccinelle.
I would mention which script was used, but other than that:
Acked-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>
>
> Signed-off-by: Geyslan G. Bem <geyslan@xxxxxxxxx>
> ---
> drivers/usb/host/xhci-mem.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
> index c48cbe7..d034f92 100644
> --- a/drivers/usb/host/xhci-mem.c
> +++ b/drivers/usb/host/xhci-mem.c
> @@ -47,13 +47,12 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci,
> if (!seg)
> return NULL;
>
> - seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);
> + seg->trbs = dma_pool_zalloc(xhci->segment_pool, flags, &dma);
> if (!seg->trbs) {
> kfree(seg);
> return NULL;
> }
>
> - memset(seg->trbs, 0, TRB_SEGMENT_SIZE);
> /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */
> if (cycle_state == 0) {
> for (i = 0; i < TRBS_PER_SEGMENT; i++)
> @@ -517,12 +516,12 @@ static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci
> if (type == XHCI_CTX_TYPE_INPUT)
> ctx->size += CTX_SIZE(xhci->hcc_params);
>
> - ctx->bytes = dma_pool_alloc(xhci->device_pool, flags, &ctx->dma);
> + ctx->bytes = dma_pool_zalloc(xhci->device_pool, flags, &ctx->dma);
> if (!ctx->bytes) {
> kfree(ctx);
> return NULL;
> }
> - memset(ctx->bytes, 0, ctx->size);
> +
> return ctx;
> }
>
> --
> 2.6.2
>
--
Peter
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