Re: [PATCH] platform/chrome: cros_ec_lpc: Handle zero length read/write

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On Thu, Jun 13, 2024 at 10:25:42PM +0100, Ben Walsh wrote:
> cros_ec_lpc_mec_read_bytes and cros_ec_lpc_mec_write_bytes call
> cros_ec_lpc_mec_in_range, which checks if addresses are in the MEC
> address range, and returns -EINVAL if the range given is not sensible.
> 
> However cros_ec_lpc_mec_in_range was also returning -EINVAL for a zero
> length range.
> 
> A zero length range should not be an error condition.
> cros_ec_lpc_mec_in_range now returns 1 in this case.
> cros_ec_lpc_io_bytes_mec checks for zero length, and returns
> immediately without beginning a transfer.
> 
> Signed-off-by: Ben Walsh <ben@xxxxxxxxxx>

Ideally this would have a Fixes tag that points to my commit.

regards,
dan carpenter





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