Re: [PATCH RFC] spi: Dont call prepare/unprepare transfer if not populated

From: Linus Walleij
Date: Thu May 10 2012 - 10:01:24 EST

On Thu, May 10, 2012 at 3:50 PM, Shubhrajyoti D <shubhrajyoti@xxxxxx> wrote:

> Currently the prepare/unprepare transfer are called unconditionally.
> The assumption is that every driver using the spi core queue infrastructure
> has to populate the prepare and unprepare functions. This encourages
> drivers to populate empty functions to prevent crashing.
> This patch prevents the call to prepare/unprepare if not populated.
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx>

Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Linus Walleij
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