linux-kernel - [PATCH AUTOSEL 4.14 12/67] clk: imx6ul: fix missing of_node

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Date:   Fri, 7 Sep 2018 00:37:28 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Nicholas Mc Guire <hofrat@...dl.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.14 12/67] clk: imx6ul: fix missing of_node_put()

From: Nicholas Mc Guire <hofrat@...dl.org>

[ Upstream commit 11177e7a7aaef95935592072985526ebf0a3df43 ]

of_find_compatible_node() is returning a device node with refcount
incremented and must be explicitly decremented after the last use
which is right after the us in of_iomap() here.

Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
Fixes: 787b4271a6a0 ("clk: imx: add imx6ul clk tree support")
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/clk/imx/clk-imx6ul.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c
index 41c08fc892b9..5cc5ff1b4e1f 100644
--- a/drivers/clk/imx/clk-imx6ul.c
+++ b/drivers/clk/imx/clk-imx6ul.c
@@ -135,6 +135,7 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6ul-anatop");
 	base = of_iomap(np, 0);
+	of_node_put(np);
 	WARN_ON(!base);
 
 	clks[IMX6UL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
-- 
2.17.1