[PATCH] USB: Use ARRAY_SIZE macro

Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of ARRAY_SIZE. Some trailing whitespaces are also removed.

Patch is compile-tested on i386.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/media/w9968cf.c b/drivers/usb/media/w9968cf.c
index 52b90d5..8d6a1ff 100644
--- a/drivers/usb/media/w9968cf.c
+++ b/drivers/usb/media/w9968cf.c
@@ -2958,7 +2958,7 @@
 	};
 
 	#define V4L1_IOCTL(cmd) \
-	        ((_IOC_NR((cmd)) < sizeof(v4l1_ioctls)/sizeof(char*)) ? \
+	        ((_IOC_NR((cmd)) < ARRAY_SIZE(v4l1_ioctls)) ? \
 	        v4l1_ioctls[_IOC_NR((cmd))] : "?")
 
 	cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp));