On Wed, 8 Nov 2006, Mariusz Kozlowski wrote:
> Hello,
>
> Allright. As Greg KH suggested I split this big patch into smaller ones
> to
> make the changes easier to review. Having no better idea how to split that I
> split it on a 'patch per file' basis. All those patches clean redundant 'if'
> before
> usb_unlink/free/kill_urb():
>
> if (urb)
> usb_free_urb(urb); /* unlink / free / kill */
>
> I decided not to touch bigger 'if's like
>
> if (urb) {
> usb_kill_urb(urb);
> usb_free_urb(urb);
> urb = NULL;
> }
>
> as that would be probably too intrusive.
I encourage you to go ahead and change code sequences like that one also,
whenever it's safe to do so.
And by the way, don't worry about usb_kill_urb()'s might_sleep(). Nobody
should ever call that routine in a non-sleepable context, even if urb is
equal to NULL. If they do it's a programming error, and so having a
warning message appear will be a good thing.
Alan Stern
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