Merge tag 'gadget-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

usb: gadget: patches for v3.7 merge window

This pull request is large but the biggest part is the first part
of the cleanup on the gadget framework so we have a saner setup
to add configfs support for v3.8.

We have also some more conversions to the new udc_start/udc_stop
which makes us closer from dropping the old interfaces.

USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED are finally gone,
thanks to Michal for his awesome work.

Other than that, we have the usual set of miscellaneous changes
and cleanups involving improvements to debug messages, removal
of duplicated includes, moving dereference after NULL test,
making renesas_hsbhs' irq handler Shared, unused code being dropped,
prevention of sleep-inside-spinlock bugs and a race condition fix
on udc-core.

1 files changed, 74 insertions, 74 deletions

diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index f2e51f50e528..c33e942d119c 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -12,6 +12,8 @@
  * (at your option) any later version.
  */
 
+#define pr_fmt(fmt) "s3c2410_udc: " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
@@ -27,6 +29,7 @@
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/prefetch.h>
+#include <linux/io.h>
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
@@ -35,7 +38,6 @@
 #include <linux/usb/gadget.h>
 
 #include <asm/byteorder.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/unaligned.h>
 #include <mach/irqs.h>
@@ -115,7 +117,7 @@ static int dprintk(int level, const char *fmt, ...)
 			sizeof(printk_buf)-len, fmt, args);
 	va_end(args);
 
-	return printk(KERN_DEBUG "%s", printk_buf);
+	return pr_debug("%s", printk_buf);
 }
 #else
 static int dprintk(int level, const char *fmt, ...)
@@ -125,10 +127,10 @@ static int dprintk(int level, const char *fmt, ...)
 #endif
 static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
 {
-	u32 addr_reg,pwr_reg,ep_int_reg,usb_int_reg;
+	u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg;
 	u32 ep_int_en_reg, usb_int_en_reg, ep0_csr;
-	u32 ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2;
-	u32 ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2;
+	u32 ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2;
+	u32 ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2;
 
 	addr_reg       = udc_read(S3C2410_UDC_FUNC_ADDR_REG);
 	pwr_reg        = udc_read(S3C2410_UDC_PWR_REG);
@@ -164,10 +166,10 @@ static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
 		 "EP2_I_CSR2     : 0x%04X\n"
 		 "EP2_O_CSR1     : 0x%04X\n"
 		 "EP2_O_CSR2     : 0x%04X\n",
-			addr_reg,pwr_reg,ep_int_reg,usb_int_reg,
+			addr_reg, pwr_reg, ep_int_reg, usb_int_reg,
 			ep_int_en_reg, usb_int_en_reg, ep0_csr,
-			ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2,
-			ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2
+			ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2,
+			ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2
 		);
 
 	return 0;
@@ -230,7 +232,7 @@ static inline void s3c2410_udc_set_ep0_de_out(void __iomem *base)
 {
 	udc_writeb(base, S3C2410_UDC_INDEX_EP0, S3C2410_UDC_INDEX_REG);
 
-	udc_writeb(base,(S3C2410_UDC_EP0_CSR_SOPKTRDY
+	udc_writeb(base, (S3C2410_UDC_EP0_CSR_SOPKTRDY
 				| S3C2410_UDC_EP0_CSR_DE),
 			S3C2410_UDC_EP0_CSR_REG);
 }
@@ -263,7 +265,7 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep,
 
 	list_del_init(&req->queue);
 
-	if (likely (req->req.status == -EINPROGRESS))
+	if (likely(req->req.status == -EINPROGRESS))
 		req->req.status = status;
 	else
 		status = req->req.status;
@@ -280,9 +282,9 @@ static void s3c2410_udc_nuke(struct s3c2410_udc *udc,
 	if (&ep->queue == NULL)
 		return;
 
-	while (!list_empty (&ep->queue)) {
+	while (!list_empty(&ep->queue)) {
 		struct s3c2410_request *req;
-		req = list_entry (ep->queue.next, struct s3c2410_request,
+		req = list_entry(ep->queue.next, struct s3c2410_request,
 				queue);
 		s3c2410_udc_done(ep, req, status);
 	}
@@ -389,10 +391,10 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
 
 		if (idx == 0) {
 			/* Reset signal => no need to say 'data sent' */
-			if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+			if (!(udc_read(S3C2410_UDC_USB_INT_REG)
 					& S3C2410_UDC_USBINT_RESET))
 				s3c2410_udc_set_ep0_de_in(base_addr);
-			ep->dev->ep0state=EP0_IDLE;
+			ep->dev->ep0state = EP0_IDLE;
 		} else {
 			udc_write(idx, S3C2410_UDC_INDEX_REG);
 			ep_csr = udc_read(S3C2410_UDC_IN_CSR1_REG);
@@ -406,7 +408,7 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
 	} else {
 		if (idx == 0) {
 			/* Reset signal => no need to say 'data sent' */
-			if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+			if (!(udc_read(S3C2410_UDC_USB_INT_REG)
 					& S3C2410_UDC_USBINT_RESET))
 				s3c2410_udc_set_ep0_ipr(base_addr);
 		} else {
@@ -442,7 +444,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 	u8		*buf;
 	u32		ep_csr;
 	unsigned	bufferspace;
-	int		is_last=1;
+	int		is_last = 1;
 	unsigned	avail;
 	int		fifo_count = 0;
 	u32		idx;
@@ -510,7 +512,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 	/* Only ep0 debug messages are interesting */
 	if (idx == 0)
 		dprintk(DEBUG_VERBOSE, "%s fifo count : %d [last %d]\n",
-			__func__, fifo_count,is_last);
+			__func__, fifo_count, is_last);
 
 	if (is_last) {
 		if (idx == 0) {
@@ -542,7 +544,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 
 static int s3c2410_udc_read_fifo_crq(struct usb_ctrlrequest *crq)
 {
-	unsigned char *outbuf = (unsigned char*)crq;
+	unsigned char *outbuf = (unsigned char *)crq;
 	int bytes_read = 0;
 
 	udc_write(0, S3C2410_UDC_INDEX_REG);
@@ -648,7 +650,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 
 	switch (crq->bRequest) {
 	case USB_REQ_SET_CONFIGURATION:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ...\n");
 
 		if (crq->bRequestType == USB_RECIP_DEVICE) {
 			dev->req_config = 1;
@@ -657,7 +659,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_SET_INTERFACE:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ...\n");
 
 		if (crq->bRequestType == USB_RECIP_INTERFACE) {
 			dev->req_config = 1;
@@ -666,7 +668,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_SET_ADDRESS:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ...\n");
 
 		if (crq->bRequestType == USB_RECIP_DEVICE) {
 			tmp = crq->wValue & 0x7F;
@@ -679,13 +681,12 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_GET_STATUS:
-		dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ...\n");
 		s3c2410_udc_clear_ep0_opr(base_addr);
 
 		if (dev->req_std) {
-			if (!s3c2410_udc_get_status(dev, crq)) {
+			if (!s3c2410_udc_get_status(dev, crq))
 				return;
-			}
 		}
 		break;
 
@@ -750,7 +751,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		/* deferred i/o == no response yet */
 	} else if (dev->req_pending) {
 		dprintk(DEBUG_VERBOSE, "dev->req_pending... what now?\n");
-		dev->req_pending=0;
+		dev->req_pending = 0;
 	}
 
 	dprintk(DEBUG_VERBOSE, "ep0state %s\n", ep0states[dev->ep0state]);
@@ -801,16 +802,14 @@ static void s3c2410_udc_handle_ep0(struct s3c2410_udc *dev)
 
 	case EP0_IN_DATA_PHASE:			/* GET_DESCRIPTOR etc */
 		dprintk(DEBUG_NORMAL, "EP0_IN_DATA_PHASE ... what now?\n");
-		if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req) {
+		if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req)
 			s3c2410_udc_write_fifo(ep, req);
-		}
 		break;
 
 	case EP0_OUT_DATA_PHASE:		/* SET_DESCRIPTOR etc */
 		dprintk(DEBUG_NORMAL, "EP0_OUT_DATA_PHASE ... what now?\n");
-		if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req ) {
-			s3c2410_udc_read_fifo(ep,req);
-		}
+		if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req)
+			s3c2410_udc_read_fifo(ep, req);
 		break;
 
 	case EP0_END_XFER:
@@ -836,7 +835,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 	u32			ep_csr1;
 	u32			idx;
 
-	if (likely (!list_empty(&ep->queue)))
+	if (likely(!list_empty(&ep->queue)))
 		req = list_entry(ep->queue.next,
 				struct s3c2410_request, queue);
 	else
@@ -858,9 +857,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 			return;
 		}
 
-		if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req) {
-			s3c2410_udc_write_fifo(ep,req);
-		}
+		if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req)
+			s3c2410_udc_write_fifo(ep, req);
 	} else {
 		udc_write(idx, S3C2410_UDC_INDEX_REG);
 		ep_csr1 = udc_read(S3C2410_UDC_OUT_CSR1_REG);
@@ -873,9 +871,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 			return;
 		}
 
-		if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) {
-			s3c2410_udc_read_fifo(ep,req);
-		}
+		if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req)
+			s3c2410_udc_read_fifo(ep, req);
 	}
 }
 
@@ -1057,7 +1054,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 	struct s3c2410_ep	*ep;
 	u32			max, tmp;
 	unsigned long		flags;
-	u32			csr1,csr2;
+	u32			csr1, csr2;
 	u32			int_en_reg;
 
 	ep = to_s3c2410_ep(_ep);
@@ -1073,7 +1070,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 
 	max = usb_endpoint_maxp(desc) & 0x1fff;
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 	_ep->maxpacket = max & 0x7ff;
 	ep->ep.desc = desc;
 	ep->halted = 0;
@@ -1117,11 +1114,11 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 
 	/* print some debug message */
 	tmp = desc->bEndpointAddress;
-	dprintk (DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
-		 _ep->name,ep->num, tmp,
+	dprintk(DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
+		 _ep->name, ep->num, tmp,
 		 desc->bEndpointAddress & USB_DIR_IN ? "in" : "out", max);
 
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 	s3c2410_udc_set_halt(_ep, 0);
 
 	return 0;
@@ -1149,7 +1146,7 @@ static int s3c2410_udc_ep_disable(struct usb_ep *_ep)
 	ep->ep.desc = NULL;
 	ep->halted = 1;
 
-	s3c2410_udc_nuke (ep->dev, ep, -ESHUTDOWN);
+	s3c2410_udc_nuke(ep->dev, ep, -ESHUTDOWN);
 
 	/* disable irqs */
 	int_en_reg = udc_read(S3C2410_UDC_EP_INT_EN_REG);
@@ -1170,16 +1167,16 @@ s3c2410_udc_alloc_request(struct usb_ep *_ep, gfp_t mem_flags)
 {
 	struct s3c2410_request *req;
 
-	dprintk(DEBUG_VERBOSE,"%s(%p,%d)\n", __func__, _ep, mem_flags);
+	dprintk(DEBUG_VERBOSE, "%s(%p,%d)\n", __func__, _ep, mem_flags);
 
 	if (!_ep)
 		return NULL;
 
-	req = kzalloc (sizeof(struct s3c2410_request), mem_flags);
+	req = kzalloc(sizeof(struct s3c2410_request), mem_flags);
 	if (!req)
 		return NULL;
 
-	INIT_LIST_HEAD (&req->queue);
+	INIT_LIST_HEAD(&req->queue);
 	return &req->req;
 }
 
@@ -1197,7 +1194,7 @@ s3c2410_udc_free_request(struct usb_ep *_ep, struct usb_request *_req)
 	if (!ep || !_req || (!ep->ep.desc && _ep->name != ep0name))
 		return;
 
-	WARN_ON (!list_empty (&req->queue));
+	WARN_ON(!list_empty(&req->queue));
 	kfree(req);
 }
 
@@ -1220,12 +1217,12 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 	}
 
 	dev = ep->dev;
-	if (unlikely (!dev->driver
+	if (unlikely(!dev->driver
 			|| dev->gadget.speed == USB_SPEED_UNKNOWN)) {
 		return -ESHUTDOWN;
 	}
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
 	if (unlikely(!_req || !_req->complete
 			|| !_req->buf || !list_empty(&req->queue))) {
@@ -1233,7 +1230,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 			dprintk(DEBUG_NORMAL, "%s: 1 X X X\n", __func__);
 		else {
 			dprintk(DEBUG_NORMAL, "%s: 0 %01d %01d %01d\n",
-				__func__, !_req->complete,!_req->buf,
+				__func__, !_req->complete, !_req->buf,
 				!list_empty(&req->queue));
 		}
 
@@ -1299,7 +1296,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 	}
 
 	/* pio or dma irq handler advances the queue. */
-	if (likely (req != 0))
+	if (likely(req))
 		list_add_tail(&req->queue, &ep->queue);
 
 	local_irq_restore(flags);
@@ -1329,11 +1326,11 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 
 	udc = to_s3c2410_udc(ep->gadget);
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
-	list_for_each_entry (req, &ep->queue, queue) {
+	list_for_each_entry(req, &ep->queue, queue) {
 		if (&req->req == _req) {
-			list_del_init (&req->queue);
+			list_del_init(&req->queue);
 			_req->status = -ECONNRESET;
 			retval = 0;
 			break;
@@ -1348,7 +1345,7 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 		s3c2410_udc_done(ep, req, -ECONNRESET);
 	}
 
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 	return retval;
 }
 
@@ -1367,7 +1364,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 		return -EINVAL;
 	}
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
 	idx = ep->bEndpointAddress & 0x7F;
 
@@ -1376,7 +1373,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 		s3c2410_udc_set_ep0_de_out(base_addr);
 	} else {
 		udc_write(idx, S3C2410_UDC_INDEX_REG);
-		ep_csr = udc_read((ep->bEndpointAddress &USB_DIR_IN)
+		ep_csr = udc_read((ep->bEndpointAddress & USB_DIR_IN)
 				? S3C2410_UDC_IN_CSR1_REG
 				: S3C2410_UDC_OUT_CSR1_REG);
 
@@ -1404,7 +1401,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 	}
 
 	ep->halted = value ? 1 : 0;
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 
 	return 0;
 }
@@ -1484,9 +1481,9 @@ static int s3c2410_udc_set_pullup(struct s3c2410_udc *udc, int is_on)
 			}
 			s3c2410_udc_disable(udc);
 		}
-	}
-	else
+	} else {
 		return -EOPNOTSUPP;
+	}
 
 	return 0;
 }
@@ -1542,7 +1539,7 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
 }
 
 static int s3c2410_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int s3c2410_udc_stop(struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops s3c2410_ops = {
@@ -1617,20 +1614,20 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev)
 	u32 i;
 
 	/* device/ep0 records init */
-	INIT_LIST_HEAD (&dev->gadget.ep_list);
-	INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
+	INIT_LIST_HEAD(&dev->gadget.ep_list);
+	INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
 	dev->ep0state = EP0_IDLE;
 
 	for (i = 0; i < S3C2410_ENDPOINTS; i++) {
 		struct s3c2410_ep *ep = &dev->ep[i];
 
 		if (i != 0)
-			list_add_tail (&ep->ep.ep_list, &dev->gadget.ep_list);
+			list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
 
 		ep->dev = dev;
 		ep->ep.desc = NULL;
 		ep->halted = 0;
-		INIT_LIST_HEAD (&ep->queue);
+		INIT_LIST_HEAD(&ep->queue);
 	}
 }
 
@@ -1668,7 +1665,7 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev)
 }
 
 static int s3c2410_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct s3c2410_udc *udc = the_controller;
 	int		retval;
@@ -1683,13 +1680,13 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
 		return -EBUSY;
 
 	if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) {
-		printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n",
+		dev_err(&udc->gadget.dev, "Invalid driver: bind %p setup %p speed %d\n",
 			bind, driver->setup, driver->max_speed);
 		return -EINVAL;
 	}
 #if defined(MODULE)
 	if (!driver->unbind) {
-		printk(KERN_ERR "Invalid driver: no unbind method\n");
+		dev_err(&udc->gadget.dev, "Invalid driver: no unbind method\n");
 		return -EINVAL;
 	}
 #endif
@@ -1699,15 +1696,17 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
 	udc->gadget.dev.driver = &driver->driver;
 
 	/* Bind the driver */
-	if ((retval = device_add(&udc->gadget.dev)) != 0) {
-		printk(KERN_ERR "Error in device_add() : %d\n",retval);
+	retval = device_add(&udc->gadget.dev);
+	if (retval) {
+		dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval);
 		goto register_error;
 	}
 
 	dprintk(DEBUG_NORMAL, "binding gadget driver '%s'\n",
 		driver->driver.name);
 
-	if ((retval = bind(&udc->gadget)) != 0) {
+	retval = bind(&udc->gadget, driver);
+	if (retval) {
 		device_del(&udc->gadget.dev);
 		goto register_error;
 	}
@@ -1865,7 +1864,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
 		memory.ep[4].fifo_size = S3C2440_EP_FIFO_SIZE;
 	}
 
-	spin_lock_init (&udc->lock);
+	spin_lock_init(&udc->lock);
 	udc_info = pdev->dev.platform_data;
 
 	rsrc_start = S3C2410_PA_USBDEV;
@@ -2028,7 +2027,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
+static int
+s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
 {
 	s3c2410_udc_command(S3C2410_UDC_P_DISABLE);
 
@@ -2073,7 +2073,7 @@ static int __init udc_init(void)
 
 	s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL);
 	if (IS_ERR(s3c2410_udc_debugfs_root)) {
-		printk(KERN_ERR "%s: debugfs dir creation failed %ld\n",
+		pr_err("%s: debugfs dir creation failed %ld\n",
 			gadget_name, PTR_ERR(s3c2410_udc_debugfs_root));
 		s3c2410_udc_debugfs_root = NULL;
 	}