staging/comedi: Use pr_ or dev_ printks in drivers/unioxx5.c

fixed below checkpatch warnings.
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
- WARNING: Prefer netdev_info(netdev, ... then dev_info(dev, ... then pr_info(...  to printk(KERN_INFO ...

and added pr_fmt.
Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/unioxx5.c

@@ -42,6 +42,8 @@ Devices: [Fastwel] UNIOxx-5 (unioxx5),
 
 */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include "../comedidev.h"
 #include <linux/ioport.h>
 #include <linux/slab.h>
@@ -144,8 +146,7 @@ static int __unioxx5_digital_read(struct unioxx5_subd_priv *usp,
 
 	channel_offset = __unioxx5_define_chan_offset(channel);
 	if (channel_offset < 0) {
-		printk(KERN_ERR
-		       "comedi%d: undefined channel %d. channel range is 0 .. 23\n",
+		pr_err("comedi%d: undefined channel %d. channel range is 0 .. 23\n",
 		       minor, channel);
 		return 0;
 	}
@@ -171,8 +172,7 @@ static int __unioxx5_analog_read(struct unioxx5_subd_priv *usp,
 
 	/* defining if given module can work on input */
 	if (usp->usp_module_type[module_no] & MODULE_OUTPUT_MASK) {
-		printk(KERN_ERR
-		       "comedi%d: module in position %d with id 0x%02x is for output only",
+		pr_err("comedi%d: module in position %d with id 0x%02x is for output only",
 		       minor, module_no, usp->usp_module_type[module_no]);
 		return 0;
 	}
@@ -209,8 +209,7 @@ static int __unioxx5_digital_write(struct unioxx5_subd_priv *usp,
 
 	channel_offset = __unioxx5_define_chan_offset(channel);
 	if (channel_offset < 0) {
-		printk(KERN_ERR
-		       "comedi%d: undefined channel %d. channel range is 0 .. 23\n",
+		pr_err("comedi%d: undefined channel %d. channel range is 0 .. 23\n",
 		       minor, channel);
 		return 0;
 	}
@@ -240,8 +239,7 @@ static int __unioxx5_analog_write(struct unioxx5_subd_priv *usp,
 
 	/* defining if given module can work on output */
 	if (!(usp->usp_module_type[module] & MODULE_OUTPUT_MASK)) {
-		printk(KERN_ERR
-		       "comedi%d: module in position %d with id 0x%0x is for input only!\n",
+		pr_err("comedi%d: module in position %d with id 0x%0x is for input only!\n",
 		       minor, module, usp->usp_module_type[module]);
 		return 0;
 	}
@@ -323,17 +321,17 @@ static int unioxx5_insn_config(struct comedi_device *dev,
 	type = usp->usp_module_type[channel / 2];
 
 	if (type != MODULE_DIGITAL) {
-		printk(KERN_ERR
-		       "comedi%d: channel configuration accessible only for digital modules\n",
-		       dev->minor);
+		dev_err(dev->class_dev,
+			"comedi%d: channel configuration accessible only for digital modules\n",
+			dev->minor);
 		return -1;
 	}
 
 	channel_offset = __unioxx5_define_chan_offset(channel);
 	if (channel_offset < 0) {
-		printk(KERN_ERR
-		       "comedi%d: undefined channel %d. channel range is 0 .. 23\n",
-		       dev->minor, channel);
+		dev_err(dev->class_dev,
+			"comedi%d: undefined channel %d. channel range is 0 .. 23\n",
+			dev->minor, channel);
 		return -1;
 	}
 
@@ -348,7 +346,8 @@ static int unioxx5_insn_config(struct comedi_device *dev,
 		flags |= mask;
 		break;
 	default:
-		printk(KERN_ERR "comedi%d: unknown flag\n", dev->minor);
+		dev_err(dev->class_dev,
+			"comedi%d: unknown flag\n", dev->minor);
 		return -1;
 	}
 
@@ -375,19 +374,21 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev,
 	int i, to, ndef_flag = 0;
 
 	if (!request_region(subdev_iobase, UNIOXX5_SIZE, DRIVER_NAME)) {
-		printk(KERN_ERR "comedi%d: I/O port conflict\n", minor);
+		dev_err(subdev->class_dev,
+			"comedi%d: I/O port conflict\n", minor);
 		return -EIO;
 	}
 
 	usp = kzalloc(sizeof(*usp), GFP_KERNEL);
 
 	if (usp == NULL) {
-		printk(KERN_ERR "comedi%d: error! --> out of memory!\n", minor);
+		dev_err(subdev->class_dev,
+			"comedi%d: error! --> out of memory!\n", minor);
 		return -1;
 	}
 
 	usp->usp_iobase = subdev_iobase;
-	printk(KERN_INFO "comedi%d: |", minor);
+	dev_info(subdev->class_dev, "comedi%d: |", minor);
 
 	/* defining modules types */
 	for (i = 0; i < 12; i++) {
@@ -433,8 +434,6 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev,
 	/* for digital modules only!!! */
 	subdev->insn_config = unioxx5_insn_config;
 
-	printk(KERN_INFO "subdevice configured\n");
-
 	return 0;
 }
 
@@ -464,8 +463,8 @@ static int unioxx5_attach(struct comedi_device *dev,
 
 	/* unioxx5 can has from two to four subdevices */
 	if (n_subd < 2) {
-		printk(KERN_ERR
-		       "your card must has at least 2 'g01' subdevices\n");
+		dev_err(dev->class_dev,
+			"your card must has at least 2 'g01' subdevices\n");
 		return -1;
 	}
 
@@ -480,7 +479,6 @@ static int unioxx5_attach(struct comedi_device *dev,
 			return -1;
 	}
 
-	printk(KERN_INFO "attached\n");
 	return 0;
 }