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clocksource/drivers/rockchip: Add err handle for rk_timer_init 

Currently rockchip_timer doesn't do some basic cleanup work when
failing to init the timer. Let's add err handle routine to deal
with all the err cases.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Shawn Lin 2016-02-15 09:02:09 +08:00 committed by Daniel Lezcano
parent e392d603f6
commit 522ed95c26
1 changed files with 15 additions and 6 deletions
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21
drivers/clocksource/rockchip_timer.c
View File

@ -122,23 +122,23 @@ static void __init rk_timer_init(struct device_node *np)
pclk = of_clk_get_by_name(np, "pclk");
if (IS_ERR(pclk)) {
pr_err("Failed to get pclk for '%s'\n", TIMER_NAME);
return;
goto out_unmap;
}
if (clk_prepare_enable(pclk)) {
pr_err("Failed to enable pclk for '%s'\n", TIMER_NAME);
return;
goto out_unmap;
}
timer_clk = of_clk_get_by_name(np, "timer");
if (IS_ERR(timer_clk)) {
pr_err("Failed to get timer clock for '%s'\n", TIMER_NAME);
return;
goto out_timer_clk;
}
if (clk_prepare_enable(timer_clk)) {
pr_err("Failed to enable timer clock\n");
return;
goto out_timer_clk;
}
bc_timer.freq = clk_get_rate(timer_clk);
@ -146,7 +146,7 @@ static void __init rk_timer_init(struct device_node *np)
irq = irq_of_parse_and_map(np, 0);
if (!irq) {
pr_err("Failed to map interrupts for '%s'\n", TIMER_NAME);
return;
goto out_irq;
}
ce->name = TIMER_NAME;
@ -164,10 +164,19 @@ static void __init rk_timer_init(struct device_node *np)
ret = request_irq(irq, rk_timer_interrupt, IRQF_TIMER, TIMER_NAME, ce);
if (ret) {
pr_err("Failed to initialize '%s': %d\n", TIMER_NAME, ret);
return;
goto out_irq;
}
clockevents_config_and_register(ce, bc_timer.freq, 1, UINT_MAX);
return;
out_irq:
clk_disable_unprepare(timer_clk);
out_timer_clk:
clk_disable_unprepare(pclk);
out_unmap:
iounmap(bc_timer.base);
}
CLOCKSOURCE_OF_DECLARE(rk_timer, "rockchip,rk3288-timer", rk_timer_init);