Re: [PATCH v2 09/21] usb/gadget: f_mass_storage: use fsg_common_setup in fsg_common_init

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On Fri, Jul 19 2013, Andrzej Pietrasiewicz wrote:
> fsg_common_init is a lengthy function. Now there are helper functions
> which cover all parts of it. Use them.
>
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>

Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>

> ---
>  drivers/usb/gadget/f_mass_storage.c |   19 +++----------------
>  1 files changed, 3 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
> index f1b0da8..0f40d35 100644
> --- a/drivers/usb/gadget/f_mass_storage.c
> +++ b/drivers/usb/gadget/f_mass_storage.c
> @@ -3019,16 +3019,9 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
>  		return ERR_PTR(-EINVAL);
>  	}
>  
> -	/* Allocate? */
> -	if (!common) {
> -		common = kzalloc(sizeof *common, GFP_KERNEL);
> -		if (!common)
> -			return ERR_PTR(-ENOMEM);
> -		common->free_storage_on_release = 1;
> -	} else {
> -		memset(common, 0, sizeof *common);
> -		common->free_storage_on_release = 0;
> -	}
> +	common = fsg_common_setup(common, !!common);
> +	if (IS_ERR(common))
> +		return common;
>  	common->sysfs = true;
>  	common->state = FSG_STATE_IDLE;
>  
> @@ -3068,8 +3061,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
>  	}
>  	common->luns = curlun_it;
>  
> -	init_rwsem(&common->filesem);
> -
>  	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun_it, ++lcfg) {
>  		struct fsg_lun *curlun;
>  
> @@ -3169,8 +3160,6 @@ buffhds_first_it:
>  	common->can_stall = cfg->can_stall &&
>  		!(gadget_is_at91(common->gadget));
>  
> -	spin_lock_init(&common->lock);
> -	kref_init(&common->ref);
>  
>  	/* Tell the thread to start working */
>  	common->thread_task =
> @@ -3179,8 +3168,6 @@ buffhds_first_it:
>  		rc = PTR_ERR(common->thread_task);
>  		goto error_release;
>  	}
> -	init_completion(&common->thread_notifier);
> -	init_waitqueue_head(&common->fsg_wait);
>  
>  	/* Information */
>  	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
> -- 
> 1.7.0.4
>

-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
ooo +----<email/xmpp: mpn@xxxxxxxxxx>--------------ooO--(_)--Ooo--

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