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.kernel.org mmind/linux-rockchip.git
v4.7-clk/next commit 86609a6613c64ee9272da1fd2f578d4beab2174e)

Conflicts:

	drivers/clk/rockchip/clk-rk3228.c
[zx: there is no rk3228 clock controller, and apply this patch for
clk-rk3366 manually.]

Change-Id: I2d73c90eb6f43150725c81417af37a6a562cd329
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>

drivers/clk/rockchip/clk-rk3036.c

@@ -449,6 +449,7 @@ static void __init rk3036_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;
 	}
 

drivers/clk/rockchip/clk-rk3188.c

@@ -771,6 +771,7 @@ static struct rockchip_clk_provider *__init rk3188_common_clk_init(struct device
 	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 ERR_PTR(-ENOMEM);
 	}
 

drivers/clk/rockchip/clk-rk3288.c

@@ -893,6 +893,7 @@ static void __init rk3288_clk_init(struct device_node *np)
 	ctx = rockchip_clk_init(np, rk3288_cru_base, CLK_NR_CLKS);
 	if (IS_ERR(ctx)) {
 		pr_err("%s: rockchip clk init failed\n", __func__);
+		iounmap(rk3288_cru_base);
 		return;
 	}
 

drivers/clk/rockchip/clk-rk3366.c

@@ -811,6 +811,7 @@ static void __init rk3366_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;
 	}
 

drivers/clk/rockchip/clk-rk3368.c

@@ -869,6 +869,7 @@ static void __init rk3368_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;
 	}