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authorShawn Lin <shawn.lin@rock-chips.com>2016-02-15 04:02:09 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2016-02-25 16:30:17 +0300
commit522ed95c26cd03b768018e441bbc0ff656e30fe4 (patch)
tree6ef53c64fbb66d41ca48458dea756c047ab0768a /drivers/clocksource/rockchip_timer.c
parente392d603f61767cb2de4d82bb55a035918f8342c (diff)
downloadlinux-522ed95c26cd03b768018e441bbc0ff656e30fe4.tar.xz
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>
Diffstat (limited to 'drivers/clocksource/rockchip_timer.c')
-rw-r--r--drivers/clocksource/rockchip_timer.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
index 8c77a529d0d4..b991b288c803 100644
--- a/drivers/clocksource/rockchip_timer.c
+++ b/drivers/clocksource/rockchip_timer.c
@@ -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);