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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> -
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