From: Shawn Lin <[email protected]> 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 <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> --- drivers/clocksource/rockchip_timer.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c index 8c77a52..b991b28 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); -- 1.9.1
