[PATCH] clocksource: Freescale: handle of_iomap failures in legacy timer driver

[Arvind Yadav]

Check return value of of_iomap and handle errors correctly.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
 drivers/clocksource/fsl_ftm_timer.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/clocksource/fsl_ftm_timer.c 
b/drivers/clocksource/fsl_ftm_timer.c
index 738515b..c42d159 100644
--- a/drivers/clocksource/fsl_ftm_timer.c
+++ b/drivers/clocksource/fsl_ftm_timer.c
@@ -335,36 +335,40 @@ static int __init ftm_timer_init(struct device_node *np)
        priv->clksrc_base = of_iomap(np, 1);
        if (!priv->clksrc_base) {
                pr_err("ftm: unable to map source timer registers\n");
-               goto err;
+               goto err1;
        }
 
        ret = -EINVAL;
        irq = irq_of_parse_and_map(np, 0);
        if (irq <= 0) {
                pr_err("ftm: unable to get IRQ from DT, %d\n", irq);
-               goto err;
+               goto err2;
        }
 
        priv->big_endian = of_property_read_bool(np, "big-endian");
 
        freq = ftm_clk_init(np);
        if (!freq)
-               goto err;
+               goto err2;
 
        ret = ftm_calc_closest_round_cyc(freq);
        if (ret)
-               goto err;
+               goto err2;
 
        ret = ftm_clocksource_init(freq);
        if (ret)
-               goto err;
+               goto err2;
 
        ret = ftm_clockevent_init(freq, irq);
        if (ret)
-               goto err;
+               goto err2;
 
        return 0;
 
+err2:
+       iounmap(priv->clksrc_base);
+err1:
+       iounmap(priv->clkevt_base);
 err:
        kfree(priv);
        return ret;
-- 
2.7.4