linux-kernel - [PATCH] clk: nxp: clk-lpc18xx-ccu: Unmap region obtained by of

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Date:   Tue, 20 Sep 2016 16:09:47 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     mturquette@...libre.com, sboyd@...eaurora.org, manabian@...il.com
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Arvind Yadav <arvind.yadav.cs@...il.com>
Subject: [PATCH] clk: nxp: clk-lpc18xx-ccu: Unmap region obtained by of_iomap

From: Arvind Yadav <arvind.yadav.cs@...il.com>

Free memory mapping, if lpc18xx_ccu_init is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/clk/nxp/clk-lpc18xx-ccu.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/nxp/clk-lpc18xx-ccu.c b/drivers/clk/nxp/clk-lpc18xx-ccu.c
index f7136b9..27781b4 100644
--- a/drivers/clk/nxp/clk-lpc18xx-ccu.c
+++ b/drivers/clk/nxp/clk-lpc18xx-ccu.c
@@ -277,12 +277,15 @@ static void __init lpc18xx_ccu_init(struct device_node *np)
 	}
 
 	clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
-	if (!clk_data)
+	if (!clk_data) {
+		iounmap(reg_base);
 		return;
+	}
 
 	clk_data->num = of_property_count_strings(np, "clock-names");
 	clk_data->name = kcalloc(clk_data->num, sizeof(char *), GFP_KERNEL);
 	if (!clk_data->name) {
+		iounmap(reg_base);
 		kfree(clk_data);
 		return;
 	}
-- 
1.7.9.5