tree 9e4b600fc116cfe0784e968259148df1ed728c57
parent 84309e0abdd76517b7b0d72e2f8373194fcffeb2
author Daniel Lezcano <daniel.lezcano@linaro.org> 1464764146 +0200
committer Daniel Lezcano <daniel.lezcano@linaro.org> 1467101959 +0200

clocksource/drivers/dw_apb_timer: Convert init function to return error

The init functions do not return any error. They behave as the following:

 - panic, thus leading to a kernel crash while another timer may work and
   make the system boot up correctly

 or

 - print an error and let the caller unaware if the state of the system

Change that by converting the init functions to return an error conforming
to the CLOCKSOURCE_OF_RET prototype.

Proper error handling (rollback, errno value) will be changed later case
by case, thus this change just return back an error or success in the init
function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>