V4L/DVB (7503): usbvision: rename __PRETTY_FUNCTION__ occurrences

__PRETTY_FUNCTION__ has no sense in C lang context. Rename it as __func__

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c
index a7ed6f2..e2274d7 100644
--- a/drivers/media/video/usbvision/usbvision-i2c.c
+++ b/drivers/media/video/usbvision/usbvision-i2c.c
@@ -45,8 +45,10 @@
 module_param (i2c_debug, int, 0644);			// debug_i2c_usb mode of the device driver
 MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
 
-#define PDEBUG(level, fmt, args...) \
-		if (i2c_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
+#define PDEBUG(level, fmt, args...) { \
+		if (i2c_debug & (level)) \
+			info("[%s:%d] " fmt, __func__, __LINE__ , ## args); \
+	}
 
 static int usbvision_i2c_write(struct usb_usbvision *usbvision, unsigned char addr, char *buf,
 			    short len);