diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 0b49614..b002d6f 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -279,10 +279,10 @@
 {
 	struct xhci_segment *seg;
 
-	seg = (struct xhci_segment *)malloc(sizeof(struct xhci_segment));
+	seg = malloc(sizeof(struct xhci_segment));
 	BUG_ON(!seg);
 
-	seg->trbs = (union xhci_trb *)xhci_malloc(SEGMENT_SIZE);
+	seg->trbs = xhci_malloc(SEGMENT_SIZE);
 
 	seg->next = NULL;
 
@@ -309,7 +309,7 @@
 	struct xhci_ring *ring;
 	struct xhci_segment *prev;
 
-	ring = (struct xhci_ring *)malloc(sizeof(struct xhci_ring));
+	ring = malloc(sizeof(struct xhci_ring));
 	BUG_ON(!ring);
 
 	if (num_segs == 0)
@@ -425,8 +425,7 @@
 {
 	struct xhci_container_ctx *ctx;
 
-	ctx = (struct xhci_container_ctx *)
-		malloc(sizeof(struct xhci_container_ctx));
+	ctx = malloc(sizeof(struct xhci_container_ctx));
 	BUG_ON(!ctx);
 
 	BUG_ON((type != XHCI_CTX_TYPE_DEVICE) && (type != XHCI_CTX_TYPE_INPUT));
@@ -436,7 +435,7 @@
 	if (type == XHCI_CTX_TYPE_INPUT)
 		ctx->size += CTX_SIZE(readl(&ctrl->hccr->cr_hccparams));
 
-	ctx->bytes = (u8 *)xhci_malloc(ctx->size);
+	ctx->bytes = xhci_malloc(ctx->size);
 
 	return ctx;
 }
@@ -458,8 +457,7 @@
 		return -EEXIST;
 	}
 
-	ctrl->devs[slot_id] = (struct xhci_virt_device *)
-					malloc(sizeof(struct xhci_virt_device));
+	ctrl->devs[slot_id] = malloc(sizeof(struct xhci_virt_device));
 
 	if (!ctrl->devs[slot_id]) {
 		puts("Failed to allocate virtual device\n");
@@ -518,8 +516,7 @@
 	struct xhci_segment *seg;
 
 	/* DCBAA initialization */
-	ctrl->dcbaa = (struct xhci_device_context_array *)
-			xhci_malloc(sizeof(struct xhci_device_context_array));
+	ctrl->dcbaa = xhci_malloc(sizeof(struct xhci_device_context_array));
 	if (ctrl->dcbaa == NULL) {
 		puts("unable to allocate DCBA\n");
 		return -ENOMEM;
@@ -555,8 +552,8 @@
 
 	/* Event ring does not maintain link TRB */
 	ctrl->event_ring = xhci_ring_alloc(ERST_NUM_SEGS, false);
-	ctrl->erst.entries = (struct xhci_erst_entry *)
-		xhci_malloc(sizeof(struct xhci_erst_entry) * ERST_NUM_SEGS);
+	ctrl->erst.entries = xhci_malloc(sizeof(struct xhci_erst_entry) *
+					 ERST_NUM_SEGS);
 
 	ctrl->erst.num_entries = ERST_NUM_SEGS;