diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 391a122..b292b45 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -349,14 +349,13 @@
 	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);
diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index b9429bc..39b7136 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -253,13 +253,12 @@
 	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;
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index da6f56d..c17ea15 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -248,11 +248,10 @@
 	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);
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index dc31c42..3297473 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -30,10 +30,9 @@
 	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;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index dc7f915..5cd080e 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -47,13 +47,12 @@
 	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 @@
 	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;
 }