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Subject[PATCH V2 15/63] clocksource/drivers/clksrc-dbx500: Convert init function to return error
Date
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>
---
drivers/clocksource/clksrc-dbx500-prcmu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/clksrc-dbx500-prcmu.c b/drivers/clocksource/clksrc-dbx500-prcmu.c
index dfad6eb..5a59d29 100644
--- a/drivers/clocksource/clksrc-dbx500-prcmu.c
+++ b/drivers/clocksource/clksrc-dbx500-prcmu.c
@@ -64,7 +64,7 @@ static u64 notrace dbx500_prcmu_sched_clock_read(void)

#endif

-static void __init clksrc_dbx500_prcmu_init(struct device_node *node)
+static int __init clksrc_dbx500_prcmu_init(struct device_node *node)
{
clksrc_dbx500_timer_base = of_iomap(node, 0);

@@ -84,7 +84,7 @@ static void __init clksrc_dbx500_prcmu_init(struct device_node *node)
#ifdef CONFIG_CLKSRC_DBX500_PRCMU_SCHED_CLOCK
sched_clock_register(dbx500_prcmu_sched_clock_read, 32, RATE_32K);
#endif
- clocksource_register_hz(&clocksource_dbx500_prcmu, RATE_32K);
+ return clocksource_register_hz(&clocksource_dbx500_prcmu, RATE_32K);
}
-CLOCKSOURCE_OF_DECLARE(dbx500_prcmu, "stericsson,db8500-prcmu-timer-4",
+CLOCKSOURCE_OF_DECLARE_RET(dbx500_prcmu, "stericsson,db8500-prcmu-timer-4",
clksrc_dbx500_prcmu_init);
--
1.9.1
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