From: Shawn Lin <shawn.lin@rock-chips.com>
Date: Sun, 13 Mar 2016 04:13:22 +0000 (+0800)
Subject: UPSTREAM: clk: rockchip: release io resource when failing to init clk
X-Git-Tag: firefly_0821_release~2402
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d22154750ca7e1a97b55d2d2fd0d115efa06a08f;p=firefly-linux-kernel-4.4.55.git

UPSTREAM: clk: rockchip: release io resource when failing to init clk

We should call iounmap to relase reg_base since it's not going
to be used any more if failing to init clk.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(cherry picked from git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
v4.8-clk/next commit 1d003eb0805ac5b549e76202a1e95da33f62cb9a)

Change-Id: Ia0161885786d6504fee7e76c6620df98bb2cdb21
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
---

diff --git a/drivers/clk/rockchip/clk-rk3228.c b/drivers/clk/rockchip/clk-rk3228.c
index c112b2f95224..016bdb0b793a 100644
--- a/drivers/clk/rockchip/clk-rk3228.c
+++ b/drivers/clk/rockchip/clk-rk3228.c
@@ -640,6 +640,7 @@ static void __init rk3228_clk_init(struct device_node *np)
 	ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
 	if (IS_ERR(ctx)) {
 		pr_err("%s: rockchip clk init failed\n", __func__);
+		iounmap(reg_base);
 		return;
 	}