On Mon, Nov 27, 2006 at 12:34:52PM -0800, Mark Gross wrote:
> On Thu, Nov 23, 2006 at 03:41:11AM +0900, Akinobu Mita wrote:
> > The return value of platform_device_register_simple() should be
> > checked by IS_ERR().
> > 
> > This patch also fix misc_register() error case. Because misc_register()
> > returns error code.
> > 
> > Cc: Sebastien Bouchard <[EMAIL PROTECTED]>
> > Signed-off-by: Akinobu Mita <[EMAIL PROTECTED]>
> > 
> > ---
> >  drivers/char/tlclk.c |    5 ++---
> >  1 file changed, 2 insertions(+), 3 deletions(-)
> > 
> > Index: work-fault-inject/drivers/char/tlclk.c
> > ===================================================================
> > --- work-fault-inject.orig/drivers/char/tlclk.c
> > +++ work-fault-inject/drivers/char/tlclk.c
> > @@ -792,15 +792,14 @@ static int __init tlclk_init(void)
> >     ret = misc_register(&tlclk_miscdev);
> >     if (ret < 0) {
> >             printk(KERN_ERR "tlclk: misc_register returns %d.\n", ret);
> > -           ret = -EBUSY;
> 
> results in an non-error return when there this device isn't on the
> system.
> 
> * NAK *
My bad.  I was looking at the earlier ret = EBUSY, this is ok.

> >             goto out3;
> >     }
> >  
> >     tlclk_device = platform_device_register_simple("telco_clock",
> >                             -1, NULL, 0);
> > -   if (!tlclk_device) {
> > +   if (IS_ERR(tlclk_device)) {
> ok
> 
> >             printk(KERN_ERR "tlclk: platform_device_register failed.\n");
> > -           ret = -EBUSY;
> > +           ret = PTR_ERR(tlclk_device);
> 
> I don't know about this but I could be wrong.  Please convince me.
> 
> >             goto out4;
> >     }
> >  
> > -
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