Re: [PATCH] Input: ads7846 - Increase xfer array size in 'struct ser_req'

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Mon, Nov 11, 2024 at 08:09:55AM -0700, Nathan Chancellor wrote:
> Clang warns (or errors with CONFIG_WERROR=y, trimmed for brevity):
> 
>   drivers/input/touchscreen/ads7846.c:412:2: error: array index 6 is past the end of the array (that has type 'struct spi_transfer[6]') [-Werror,-Warray-bounds]
>     412 |         req->xfer[6].tx_buf = &req->scratch;
>         |         ^         ~
>   ...
>   drivers/input/touchscreen/ads7846.c:416:2: error: array index 7 is past the end of the array (that has type 'struct spi_transfer[6]') [-Werror,-Warray-bounds]
>     416 |         req->xfer[7].rx_buf = &req->scratch;
>         |         ^         ~
>   drivers/input/touchscreen/ads7846.c:334:2: note: array 'xfer' declared here
>     334 |         struct spi_transfer     xfer[6];
>         |         ^
> 
> Increase the size of xfer in 'struct ser_req' to ensure that there is
> enough space for all necessary members and there are no out of bounds
> accesses, clearing up the warning.
> 
> Fixes: 781a07da9bb9 ("Input: ads7846 - add dummy command register clearing cycle")
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Applied, thank you.

-- 
Dmitry