Free memory mapping, if digicolor_timer_init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
 drivers/clocksource/timer-digicolor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clocksource/timer-digicolor.c 
b/drivers/clocksource/timer-digicolor.c
index 10318cc..e6e5e6a 100644
--- a/drivers/clocksource/timer-digicolor.c
+++ b/drivers/clocksource/timer-digicolor.c
@@ -167,12 +167,14 @@ static int __init digicolor_timer_init(struct device_node 
*node)
        irq = irq_of_parse_and_map(node, dc_timer_dev.timer_id);
        if (irq <= 0) {
                pr_err("Can't parse IRQ");
+               iounmap(dc_timer_dev.base);
                return -EINVAL;
        }
 
        clk = of_clk_get(node, 0);
        if (IS_ERR(clk)) {
                pr_err("Can't get timer clock");
+               iounmap(dc_timer_dev.base);
                return PTR_ERR(clk);
        }
        clk_prepare_enable(clk);
@@ -192,6 +194,7 @@ static int __init digicolor_timer_init(struct device_node 
*node)
                          &dc_timer_dev.ce);
        if (ret) {
                pr_warn("request of timer irq %d failed (%d)\n", irq, ret);
+               iounmap(dc_timer_dev.base);
                return ret;
        }
 
-- 
2.7.4

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