linux-kernel - [PATCH] fs/char_dev.c: remove useless loop

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Message-ID: <20090720173834.GA14288@cs.unibo.it>
Date:	Mon, 20 Jul 2009 19:38:35 +0200
From:	Renzo Davoli <renzo@...unibo.it>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] fs/char_dev.c: remove useless loop

There are two useless lines in fs/char_dev.c.

In register_chrdev there is a loop to change all '/' into '!' in the
kernel object name.
This code is useless as the same substitution is in kobject_set_name_vargs in
lib/kobject.c:
228         /* ewww... some of these buggers have '/' in the name ... */
229         while ((s = strchr(kobj->name, '/')))
230                 s[0] = '!';

kobject_set_name_vargs is called by kobject_set_name.
kobject_set_name is called just above the useless loop.

	renzo

Signed-off-by: Renzo Davoli <renzo@...unibo.it>
--
--- a/fs/char_dev.c	2009-07-20 19:06:51.000000000 +0200
+++ b/fs/char_dev.c	2009-07-20 19:14:26.000000000 +0200
@@ -278,8 +278,6 @@
 	cdev->owner = fops->owner;
 	cdev->ops = fops;
 	kobject_set_name(&cdev->kobj, "%s", name);
-	for (s = strchr(kobject_name(&cdev->kobj),'/'); s; s = strchr(s, '/'))
-		*s = '!';

 	err = cdev_add(cdev, MKDEV(cd->major, 0), 256);
 	if (err)
--
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