On Mon, Jul 14, 2014 at 11:49:38AM +0530, Kishon Vijay Abraham I wrote:
> Greg,
>
> On Thursday 05 June 2014 06:22 PM, Heikki Krogerus wrote:
> > This allows resources such as GPIOs and clocks, which can be
> > matched based on the device name when requested, to be
> > assigned even when PLATFORM_DEVID_AUTO is used.
>
> Any comments on this patch?
I thought I rejected it in the past, don't have my email archives
around at the moment, sorry.
> > Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/base/platform.c | 77 ++++++++++++++++++++++++++++++-------------------
> > 1 file changed, 47 insertions(+), 30 deletions(-)
> >
> > diff --git a/drivers/base/platform.c b/drivers/base/platform.c
> > index 9e9227e..e856bc4 100644
> > --- a/drivers/base/platform.c
> > +++ b/drivers/base/platform.c
> > @@ -177,11 +177,45 @@ struct platform_object {
> > */
> > void platform_device_put(struct platform_device *pdev)
> > {
> > - if (pdev)
> > - put_device(&pdev->dev);
> > + if (!pdev)
> > + return;
> > +
> > + if (pdev->id_auto) {
> > + ida_simple_remove(&platform_devid_ida, pdev->id);
> > + pdev->id = PLATFORM_DEVID_AUTO;
> > + }
> > +
> > + put_device(&pdev->dev);
> > }
> > EXPORT_SYMBOL_GPL(platform_device_put);
Why would a single call to this function remove an id? That seems
really wrong, you should be able to call get and put on a device
numerous times, only the "last" reference should cause the device to be
cleaned up.
Shouldn't this be in the release function instead?
thanks,
greg k-h
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