On Mon, Mar 09, 2015 at 07:30:07AM +0100, Willy Tarreau wrote:
> On Sun, Mar 08, 2015 at 11:07:25PM +0530, Sudip Mukherjee wrote:
> >
> > - if (parport_register_driver(&panel_driver)) {
> > - pr_err("could not register with parport. Aborting.\n");
> > - return -EIO;
> > - }
> > -
> > if (pprt)
> > pr_info("driver version " PANEL_VERSION
> > " registered on parport%d (io=0x%lx).\n", parport,
> > @@ -2375,7 +2370,7 @@ static int __init panel_init_module(void)
> > /* tells various subsystems about the fact that initialization
> > is finished */
> > init_in_progress = 0;
> > - return 0;
> > + return parport_register_driver(&panel_driver);
>
> Here I'd rather keep the error message, as it's quite annoying when a
> driver does not load and you don't know why, especially with something
> like parport where there are many possible causes. Something like this
> would be better in my opinion :
>
> - return 0;
> + err = parport_register_driver(&panel_driver);
> + if (err)
> + pr_err("could not register with parport. Aborting.\n");
> + return err;
>
> Well, I just found that currently parport_register_driver() always
> succeeds, but I still think it's better to verbosely handle errors.
ok, i will send a v2, but is the error message really required? considering the
fact that parport_register_driver() always succeeds ..
regards
sudip
>
> Thanks,
> Willy
>
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