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clocksource/drivers/clps711x: Convert init function to return error

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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>
This commit is contained in:
Daniel Lezcano 2016-06-02 20:07:35 +02:00
parent 2e1773f8ca
commit 04410efbb6
1 changed files with 5 additions and 7 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/clocksource/clps711x-timer.c
View file

@ -104,7 +104,7 @@ void __init clps711x_clksrc_init(void __iomem *tc1_base, void __iomem *tc2_base,
} }
#ifdef CONFIG_CLKSRC_OF #ifdef CONFIG_CLKSRC_OF
static void __init clps711x_timer_init(struct device_node *np) static int __init clps711x_timer_init(struct device_node *np)
{ {
unsigned int irq = irq_of_parse_and_map(np, 0); unsigned int irq = irq_of_parse_and_map(np, 0);
struct clk *clock = of_clk_get(np, 0); struct clk *clock = of_clk_get(np, 0);
@ -112,14 +112,12 @@ static void __init clps711x_timer_init(struct device_node *np)
switch (of_alias_get_id(np, "timer")) { switch (of_alias_get_id(np, "timer")) {
case CLPS711X_CLKSRC_CLOCKSOURCE: case CLPS711X_CLKSRC_CLOCKSOURCE:
BUG_ON(_clps711x_clksrc_init(clock, base)); return _clps711x_clksrc_init(clock, base);
break;
case CLPS711X_CLKSRC_CLOCKEVENT: case CLPS711X_CLKSRC_CLOCKEVENT:
BUG_ON(_clps711x_clkevt_init(clock, base, irq)); return _clps711x_clkevt_init(clock, base, irq);
break;
default: default:
break; return -EINVAL;
} }
} }
CLOCKSOURCE_OF_DECLARE(clps711x, "cirrus,clps711x-timer", clps711x_timer_init); CLOCKSOURCE_OF_DECLARE_RET(clps711x, "cirrus,clps711x-timer", clps711x_timer_init);
#endif #endif