Re: [PATCH] staging: unisys: handle major number properly

From: Dan Carpenter
Date: Tue Mar 24 2015 - 04:57:56 EST


On Tue, Mar 24, 2015 at 02:13:16PM +0530, Sudip Mukherjee wrote:
> 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.

Yes, but the patch description wasn't clear. You were talking saying
the condition was always true because of the types and I am saying the
condition is always true because of the order the functions are called.

>
> >
> > [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?

I'm pretty sure we're up to v3 at least now. This means redoing the
whole series, yes.

regards,
dan carpenter

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