linux-kernel - Re: [PATCH] staging: unisys: handle major number properly

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Date:	Tue, 24 Mar 2015 14:13:16 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Benjamin Romer <benjamin.romer@...sys.com>,
	David Kershner <david.kershner@...sys.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org, sparmaintainer@...sys.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: unisys: handle major number properly

On Tue, Mar 24, 2015 at 11:32:47AM +0300, Dan Carpenter wrote:
<snip>
> >  	}
> > -	rc = cdev_add(&file_cdev, MKDEV(MAJOR(majordev), 0), 1);
> > +	rc = cdev_add(&file_cdev, MKDEV(major, 0), 1);
> 
> This should just be:
> 
> 	rc = cdev_add(&file_cdev, majordev, 1);
> 
> So here is my suggestion:
> 
> [patch 1] delete dead code I mentioned in my previous email.
> 	This deletes "registered" and the (MAJOR(majordev) >= 0) check.

that was initially my first patch.

> 
> [patch 2] pass majordev to visorchipset_file_cleanup()
> 	This lets you delete the "majordev" global.
> 
> [patch 3] small cleanup in visorchipset_file_init()
> 
> -	rc = cdev_add(&file_cdev, MKDEV(MAJOR(majordev), 0), 1);
> +	rc = cdev_add(&file_cdev, majordev, 1);

and i can also include the removal of that global variable in this
3rd patch.
thanks.. after Greg's review i was thinking i understood the code wrong.
but then will this be a v2 or a whole new series?

regards
sudip

> 
> There are several other ways you could break it up but do something like
> that.
> 
> regards,
> dan carpenter
> 
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