linux-kernel - Re: [PATCH 3/8] cxacru: check device isn't being removed during sysfs calls

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Message-ID: <4B080766.60703@simon.arlott.org.uk>
Date:	Sat, 21 Nov 2009 15:29:42 +0000
From:	Simon Arlott <simon@...e.lp0.eu>
To:	Duncan Sands <duncan.sands@...h.u-psud.fr>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [PATCH 3/8] cxacru: check device isn't being removed during sysfs
 calls

On 21/11/09 15:24, Duncan Sands wrote:
>> +static inline void *to_usbatm_driver_data(struct usb_interface *intf)
>> +static inline void *to_usbatm_atm_dev(struct usb_interface *intf)
> 
> why not collapse these two into one that just returns usbatm_instance,
> and have users extract the ->driver_data or ->atm_dev fields?

I didn't feel that the driver(s) should be accessing the fields from
usbatm_instance directly to get at atm_dev. Although this new atm_dev
function only has one caller, and cxacru already access atm_dev directly
in cxacru_poll_status() so I'll remove the second function and access
cxacru_data's usbatm pointer, which won't be NULL.

-- 
Simon Arlott
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