linux-kernel - [PATCH] clk: st: fix memory leak on gate

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Date:	Tue, 22 Apr 2014 21:14:39 +0100
From:	Colin King <colin.king@...onical.com>
To:	Mike Turquette <mturquette@...aro.org>,
	Gabriel FERNANDEZ <gabriel.fernandez@...com>,
	Pankaj Dev <pankaj.dev@...com>, linux-kernel@...r.kernel.org
Subject: [PATCH] clk: st: fix memory leak on gate

From: Colin Ian King <colin.king@...onical.com>

cppcheck detected a memory leak:
[drivers/clk/st/clkgen-pll.c:525]: (error) Memory leak: gate

free gate on div allocation failure return path.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/clk/st/clkgen-pll.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index bca0a0b..a886702 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -521,8 +521,10 @@ static struct clk * __init clkgen_odf_register(const char *parent_name,
 	gate->lock = odf_lock;
 
 	div = kzalloc(sizeof(*div), GFP_KERNEL);
-	if (!div)
+	if (!div) {
+		kfree(gate);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	div->flags = CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO;
 	div->reg = reg + pll_data->odf[odf].offset;
-- 
1.9.1

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