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.lezc...@linaro.org>
---
drivers/clocksource/time-lpc32xx.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/clocksource/time-lpc32xx.c
b/drivers/clocksource/time-lpc32xx.c
index daae61e..cb5b866 100644
--- a/drivers/clocksource/time-lpc32xx.c
+++ b/drivers/clocksource/time-lpc32xx.c
@@ -288,16 +288,16 @@ err_clk_enable:
* This function asserts that we have exactly one clocksource and one
* clock_event_device in the end.
*/
-static void __init lpc32xx_timer_init(struct device_node *np)
+static int __init lpc32xx_timer_init(struct device_node *np)
{
static int has_clocksource, has_clockevent;
- int ret;
+ int ret = 0;
if (!has_clocksource) {
ret = lpc32xx_clocksource_init(np);
if (!ret) {
has_clocksource = 1;
- return;
+ return 0;
}
}
@@ -305,8 +305,10 @@ static void __init lpc32xx_timer_init(struct device_node
*np)
ret = lpc32xx_clockevent_init(np);
if (!ret) {
has_clockevent = 1;
- return;
+ return 0;
}
}
+
+ return ret;
}
-CLOCKSOURCE_OF_DECLARE(lpc32xx_timer, "nxp,lpc3220-timer", lpc32xx_timer_init);
+CLOCKSOURCE_OF_DECLARE_RET(lpc32xx_timer, "nxp,lpc3220-timer",
lpc32xx_timer_init);
--
1.9.1
