Re: [PATCH] watchdog: ebc-c384_wdt: Simplify ebc_c384_wdt_start timeout computation

[William Breathitt Gray]

On Wed, May 11, 2016 at 06:43:27AM -0700, Guenter Roeck wrote:
>On Wed, May 11, 2016 at 09:05:51AM -0400, William Breathitt Gray wrote:
>> The ebc_c384_wdt_set_timeout function already rounds up timeout values
>> greater than 255 to a multiple of 60, so there is no need to round again
>> in the ebc_c384_wdt_start function; a timeout value greater than 255 in
>> ebc_c384_wdt_start will divide cleanly by 60.
>> 
>... except if the timeout is set with the module parameter, which is now
>rounded down, which would be a problem since it would time out earlier than
>expected (a timeout of 299 seconds, set with the module parameter, would
>time out after 240 seconds). So you would have to do some calculations
>on the timeout value set with the module parameter to ensure that it is
>set to a correct value.
>
>Guenter

Oops, I overlooked that scenario. Please ignore this patch as your are
correct that a timeout set via module parameter would not necessarily be
a multiple of 60; timeout in the start callback should indeed be
rounded.

William Breathitt Gray