Re: [PATCH v3 1/1] usb: ulpi: ulpi_init should be executed in subsys_initcall

From: David Cohen
Date: Fri May 22 2015 - 12:06:38 EST


Hi,

On Fri, May 22, 2015 at 07:29:15PM +0800, Lu Baolu wrote:
> Phy drivers and the ulpi interface providers depend on the
> registeration of the ulpi bus. Ulpi registers the bus in
> module_init(). This could result in a load order issue, i.e.

It's still not an issue :(
I'd say "unnecessary probe delays".

But of cource it's Felipe's call :) Description looks better now.

BR, David

> ulpi phy drivers or the ulpi interface providers loading
> before the bus registeration.
>
> This patch fixes this load order issue by putting ulpi_init
> in subsys_initcall().
>
> Reported-by: Zhuo Qiuxu <qiuxu.zhuo@xxxxxxxxx>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
> drivers/usb/common/ulpi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
> index 0e6f968..01c0c04 100644
> --- a/drivers/usb/common/ulpi.c
> +++ b/drivers/usb/common/ulpi.c
> @@ -242,7 +242,7 @@ static int __init ulpi_init(void)
> {
> return bus_register(&ulpi_bus);
> }
> -module_init(ulpi_init);
> +subsys_initcall(ulpi_init);
>
> static void __exit ulpi_exit(void)
> {
> --
> 2.1.4
>
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