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Message-Id: <1466112442-31105-26-git-send-email-daniel.lezcano@linaro.org>
Date: Thu, 16 Jun 2016 23:26:44 +0200
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: daniel.lezcano@...aro.org, tglx@...utronix.de
Cc: linux-kernel@...r.kernel.org, Liviu Dudau <liviu.dudau@....com>,
Sudeep Holla <sudeep.holla@....com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/VERSATILE
EXP...)
Subject: [PATCH V2 25/63] clocksource/drivers/mxs_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@...aro.org>
---
drivers/clocksource/mps2-timer.c | 10 ++++++----
drivers/clocksource/mxs_timer.c | 2 +-
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/clocksource/mps2-timer.c b/drivers/clocksource/mps2-timer.c
index 3d33a5e..c303fa9 100644
--- a/drivers/clocksource/mps2-timer.c
+++ b/drivers/clocksource/mps2-timer.c
@@ -250,7 +250,7 @@ out:
return ret;
}
-static void __init mps2_timer_init(struct device_node *np)
+static int __init mps2_timer_init(struct device_node *np)
{
static int has_clocksource, has_clockevent;
int ret;
@@ -259,7 +259,7 @@ static void __init mps2_timer_init(struct device_node *np)
ret = mps2_clocksource_init(np);
if (!ret) {
has_clocksource = 1;
- return;
+ return 0;
}
}
@@ -267,9 +267,11 @@ static void __init mps2_timer_init(struct device_node *np)
ret = mps2_clockevent_init(np);
if (!ret) {
has_clockevent = 1;
- return;
+ return 0;
}
}
+
+ return 0;
}
-CLOCKSOURCE_OF_DECLARE(mps2_timer, "arm,mps2-timer", mps2_timer_init);
+CLOCKSOURCE_OF_DECLARE_RET(mps2_timer, "arm,mps2-timer", mps2_timer_init);
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f5ce296..16cf53b 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -226,7 +226,7 @@ static int __init mxs_clocksource_init(struct clk *timer_clk)
return 0;
}
-static void __init mxs_timer_init(struct device_node *np)
+static int __init mxs_timer_init(struct device_node *np)
{
struct clk *timer_clk;
int irq;
--
1.9.1
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