[PATCH] soundwire: cadence: Don't overwrite msg->buf during write commands
Vinod Koul
vkoul at kernel.org
Tue Sep 20 07:00:55 CEST 2022
On 16-09-22, 11:35, Richard Fitzgerald wrote:
> The buf passed in struct sdw_msg must only be written for a READ,
> in that case the RDATA part of the response is the data value of the
> register.
>
> For a write command there is no RDATA, and buf should be assumed to
> be const and unmodifable. The original caller should not expect its data
> buffer to be corrupted by an sdw_nwrite().
Applied, thanks
--
~Vinod
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