linux-kernel - [PATCH 06/10] usbtmc: indent & braces disagree, something else is desired

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Message-ID: <Pine.LNX.4.64.0810301349460.7072@wrl-59.cs.helsinki.fi>
Date:	Thu, 30 Oct 2008 13:56:47 +0200 (EET)
From:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
To:	Greg Kroah-Hartman <gregkh@...e.de>
cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 06/10] usbtmc: indent & braces disagree, something else is
 desired


It seems that there's rather involved way to say something
which is commonly written in a plain simple form.

Some type changes would probably be necessary to get gcc
to do bitops instead of divide but it's no worse after my
change than before I think.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>
---
 drivers/usb/class/usbtmc.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 543811f..711a9fa 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -21,6 +21,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/uaccess.h>
 #include <linux/kref.h>
@@ -481,7 +482,6 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf,
 	int retval;
 	int actual;
 	unsigned long int n_bytes;
-	int n;
 	int remaining;
 	int done;
 	int this_part;
@@ -525,11 +525,8 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf,
 			goto exit;
 		}
 
-		n_bytes = 12 + this_part;
-		if (this_part % 4)
-			n_bytes += 4 - this_part % 4;
-			for (n = 12 + this_part; n < n_bytes; n++)
-				buffer[n] = 0;
+		n_bytes = roundup(12 + this_part, 4);
+		memset(buffer + 12 + this_part, 0, n_bytes - (12 + this_part));
 
 		retval = usb_bulk_msg(data->usb_dev,
 				      usb_sndbulkpipe(data->usb_dev,
-- 
1.5.2.2