Re: [PATCH v3] cxl: Check for invalid addresses returned from translation functions on errors

[Jonathan Cameron]

On Wed, 7 Jan 2026 13:05:43 +0100
Robert Richter <rrichter@xxxxxxx> wrote:

> Translation functions may return an invalid address in case of errors.
> If the address is not checked the further use of the invalid value
> will cause an address corruption.
> 
> Consistently check for a valid address returned by translation
> functions. Use RESOURCE_SIZE_MAX to indicate an invalid address for
> type resource_size_t. Depending on the type either RESOURCE_SIZE_MAX
> or ULLONG_MAX is used to indicate an address error.
> 
> Reviewed-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> Signed-off-by: Robert Richter <rrichter@xxxxxxx>
Nice patch.
Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>