Re: [PATCH 04/29] drivers: base: add notifier for failed driver bind

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On Tue, Aug 05, 2014 at 12:47:32PM +0200, Marek Szyprowski wrote:
> This patch adds support for getting a notify for failed device driver
> bind, so all the items done in BUS_NOTIFY_BIND_DRIVER event can be
> cleaned if the driver fails to bind.

But doesn't the bus know if the driver fails to bind, so why would a
notifier be needed here?  Can't it unwind any problems then?

> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
>  drivers/base/dd.c      | 10 +++++++---
>  include/linux/device.h |  4 +++-
>  2 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index e4ffbcf..541a41f 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -237,10 +237,14 @@ static int driver_sysfs_add(struct device *dev)
>  	return ret;
>  }
>  
> -static void driver_sysfs_remove(struct device *dev)
> +static void driver_sysfs_remove(struct device *dev, int failed)

I _hate_ having functions with a flag that does something different
depending on it.  If you _really_ need this, just make the notifier call
before calling this function, which should work just fine, right?

thanks,

greg k-h
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