linux-kernel - [PATCH] clocksource: nomadik-mtu: Unmap region obtained by of

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Date:   Thu, 22 Sep 2016 19:27:44 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     daniel.lezcano@...aro.org, tglx@...utronix.de,
        vincent.guittot@...aro.org, linus.walleij@...aro.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] clocksource: nomadik-mtu: Unmap region obtained by of_iomap

Free memory mapping, if nmdk_timer_of_init is not successful.

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

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3c124d1..d99e415c 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -267,18 +267,21 @@ static int __init nmdk_timer_of_init(struct device_node *node)
 	pclk = of_clk_get_by_name(node, "apb_pclk");
 	if (IS_ERR(pclk)) {
 		pr_err("could not get apb_pclk");
+		iounmap(base);
 		return PTR_ERR(pclk);
 	}
 
 	clk = of_clk_get_by_name(node, "timclk");
 	if (IS_ERR(clk)) {
 		pr_err("could not get timclk");
+		iounmap(base);
 		return PTR_ERR(clk);
 	}
 
 	irq = irq_of_parse_and_map(node, 0);
 	if (irq <= 0) {
 		pr_err("Can't parse IRQ");
+		iounmap(base);
 		return -EINVAL;
 	}
 
-- 
2.7.4