Commit 84c1eeb0 authored by Saurabh Sengar's avatar Saurabh Sengar Committed by Greg Kroah-Hartman

usb : replace dma_pool_alloc and memset with dma_pool_zalloc

replace dma_pool_alloc and memset with a single call to dma_pool_zalloc
Signed-off-by: default avatarSaurabh Sengar <saurabh.truth@gmail.com>
Acked-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ced08b02
......@@ -349,14 +349,13 @@ static int add_td_to_list(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq,
if (node == NULL)
return -ENOMEM;
node->ptr = dma_pool_alloc(hwep->td_pool, GFP_ATOMIC,
node->ptr = dma_pool_zalloc(hwep->td_pool, GFP_ATOMIC,
&node->dma);
if (node->ptr == NULL) {
kfree(node);
return -ENOMEM;
}
memset(node->ptr, 0, sizeof(struct ci_hw_td));
node->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES));
node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES);
node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE);
......
......@@ -253,13 +253,12 @@ static struct gr_dma_desc *gr_alloc_dma_desc(struct gr_ep *ep, gfp_t gfp_flags)
dma_addr_t paddr;
struct gr_dma_desc *dma_desc;
dma_desc = dma_pool_alloc(ep->dev->desc_pool, gfp_flags, &paddr);
dma_desc = dma_pool_zalloc(ep->dev->desc_pool, gfp_flags, &paddr);
if (!dma_desc) {
dev_err(ep->dev->dev, "Could not allocate from DMA pool\n");
return NULL;
}
memset(dma_desc, 0, sizeof(*dma_desc));
dma_desc->paddr = paddr;
return dma_desc;
......
......@@ -248,11 +248,10 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci,
dma_addr_t dma_handle;
struct uhci_qh *qh;
qh = dma_pool_alloc(uhci->qh_pool, GFP_ATOMIC, &dma_handle);
qh = dma_pool_zalloc(uhci->qh_pool, GFP_ATOMIC, &dma_handle);
if (!qh)
return NULL;
memset(qh, 0, sizeof(*qh));
qh->dma_handle = dma_handle;
qh->element = UHCI_PTR_TERM(uhci);
......
......@@ -30,10 +30,9 @@ struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags)
struct whc_qset *qset;
dma_addr_t dma;
qset = dma_pool_alloc(whc->qset_pool, mem_flags, &dma);
qset = dma_pool_zalloc(whc->qset_pool, mem_flags, &dma);
if (qset == NULL)
return NULL;
memset(qset, 0, sizeof(struct whc_qset));
qset->qset_dma = dma;
qset->whc = whc;
......
......@@ -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 +516,11 @@ 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;
}
......
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