diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index ca4be0afc33d61216ef1eaceb43dc641a4dd7464..e78abb438b4b3e6fb7c6266c70a4041e65d87079 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -44,8 +44,7 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/delay.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "core.h"
 #include "gadget.h"
@@ -481,7 +480,7 @@ int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
 	int			ret;
 
 	root = debugfs_create_dir(dev_name(dwc->dev), NULL);
-	if (IS_ERR(root)){
+	if (IS_ERR(root)) {
 		ret = PTR_ERR(root);
 		goto err0;
 	}
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 7da25e1818891217c72b36cd41f9671552a2842a..861a41aa87d20c0c5bea48c40411a2e588e4a533 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -258,7 +258,8 @@ static void dwc3_ep0_status_cmpl(struct usb_ep *ep, struct usb_request *req)
 /*
  * ch 9.4.5
  */
-static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
+static int dwc3_ep0_handle_status(struct dwc3 *dwc,
+		struct usb_ctrlrequest *ctrl)
 {
 	struct dwc3_ep		*dep;
 	u32			recip;
@@ -285,7 +286,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl
 	case USB_RECIP_ENDPOINT:
 		dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);
 		if (!dep)
-		       return -EINVAL;
+			return -EINVAL;
 
 		if (dep->flags & DWC3_EP_STALL)
 			usb_status = 1 << USB_ENDPOINT_HALT;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 8aff490a1ae149eb2def62745416c7f52951f16f..9497fa5e39213b68f764b9f373a37692678af519 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -745,8 +745,9 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
 	dep->flags |= DWC3_EP_BUSY;
 	dep->res_trans_idx = dwc3_gadget_ep_get_transfer_index(dwc,
 			dep->number);
-	if (!dep->res_trans_idx)
-		printk_once(KERN_ERR "%s() res_trans_idx is invalid\n", __func__);
+
+	WARN_ON_ONCE(!dep->res_trans_idx);
+
 	return 0;
 }
 
@@ -1264,11 +1265,10 @@ static int __devinit dwc3_gadget_init_endpoints(struct dwc3 *dwc)
 					&dwc->gadget.ep_list);
 
 			ret = dwc3_alloc_trb_pool(dep);
-			if (ret) {
-				dev_err(dwc->dev, "%s: failed to allocate TRB pool\n", dep->name);
+			if (ret)
 				return ret;
-			}
 		}
+
 		INIT_LIST_HEAD(&dep->request_list);
 		INIT_LIST_HEAD(&dep->req_queued);
 	}
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 5c4a56f055e90eaeb4a404e01d0bb92b027a88e5..4cdaf02ead5d0f9c6469045c817f15ddd1a0f392 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -113,7 +113,8 @@ static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
 void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		int status);
 
-void dwc3_ep0_interrupt(struct dwc3 *dwc, const struct dwc3_event_depevt *event);
+void dwc3_ep0_interrupt(struct dwc3 *dwc,
+		const struct dwc3_event_depevt *event);
 void dwc3_ep0_out_start(struct dwc3 *dwc);
 int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
 		gfp_t gfp_flags);
diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index bc957db1ea4b246f4e7412aa7a438a83adfca77f..071d561f3e68f21af7eff20a1df954a9bff075cf 100644
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -39,7 +39,7 @@
 #ifndef __DRIVERS_USB_DWC3_IO_H
 #define __DRIVERS_USB_DWC3_IO_H
 
-#include <asm/io.h>
+#include <linux/io.h>
 
 static inline u32 dwc3_readl(void __iomem *base, u32 offset)
 {