[media] cx23885: convert it to use pr_foo() macros

Instead of calling printk() directly, use pr_foo()
macros, as suggested at the Kernel's coding style.

Please notice that a conversion to dev_foo() is not trivial,
as several parts on this driver uses pr_cont().

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/cx23885/netup-init.c

@@ -40,7 +40,7 @@ static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val)
 	ret = i2c_transfer(i2c, &msg, 1);
 
 	if (ret != 1)
-		printk(KERN_ERR "%s: i2c write error!\n", __func__);
+		pr_err("%s: i2c write error!\n", __func__);
 }
 
 static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val)
@@ -64,7 +64,7 @@ static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val)
 	ret = i2c_transfer(i2c, &msg, 1);
 
 	if (ret != 1)
-		printk(KERN_ERR "%s: i2c write error!\n", __func__);
+		pr_err("%s: i2c write error!\n", __func__);
 }
 
 static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)
@@ -84,7 +84,7 @@ static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)
 	ret = i2c_transfer(i2c, &msg, 1);
 
 	if (ret != 1)
-		printk(KERN_ERR "%s: i2c write error!\n", __func__);
+		pr_err("%s: i2c write error!\n", __func__);
 
 	msg.flags = I2C_M_RD;
 	msg.len = 1;
@@ -92,7 +92,7 @@ static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)
 	ret = i2c_transfer(i2c, &msg, 1);
 
 	if (ret != 1)
-		printk(KERN_ERR "%s: i2c read error!\n", __func__);
+		pr_err("%s: i2c read error!\n", __func__);
 
 	return buf[0];
 }