linux-kernel - RE: [PATCH V4 04/12] misc: xilinx_sdfec: Add open, close and ioctl

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Message-ID: <CH2PR02MB6359747C72220A978CCA807BCB100@CH2PR02MB6359.namprd02.prod.outlook.com>
Date:   Fri, 7 Jun 2019 10:58:34 +0000
From:   Dragan Cvetic <draganc@...inx.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "arnd@...db.de" <arnd@...db.de>, Michal Simek <michals@...inx.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Derek Kiernan <dkiernan@...inx.com>
Subject: RE: [PATCH V4 04/12] misc: xilinx_sdfec: Add open, close and ioctl

> On Sat, May 25, 2019 at 12:37:17PM +0100, Dragan Cvetic wrote:
> > +static int xsdfec_dev_open(struct inode *iptr, struct file *fptr)
> > +{
> > +	return 0;
> > +}
> > +
> > +static int xsdfec_dev_release(struct inode *iptr, struct file *fptr)
> > +{
> > +	return 0;
> > +}
> 
> empty open/close functions are never needed, just drop them.
> 

open() is needed to allocate file descriptor eg.
fd = open(dev_name, O_RDWR);

Please, advise if you have some other idea in mind

Thanks
Dragan