linux-kernel - [PATCH 2/2] pinctrl: free if of_get_parent fails to get the parent node

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Date:	Sat,  2 Jun 2012 22:34:37 +0530
From:	Devendra Naga <devendra.aaru@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org
Cc:	Devendra Naga <devendra.aaru@...il.com>
Subject: [PATCH 2/2] pinctrl: free if of_get_parent fails to get the parent node

of_get_parent can return null if no parent node found, so the allocated new_map
should be freed.

Signed-off-by: Devendra Naga <devendra.aaru@...il.com>
---
 drivers/pinctrl/pinctrl-imx.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index 553ed95..82c1d80 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -173,8 +173,10 @@ static int imx_dt_node_to_map(struct pinctrl_dev *pctldev,
 
 	/* create mux map */
 	parent = of_get_parent(np);
-	if (!parent)
+	if (!parent) {
+		kfree(new_map);
 		return -EINVAL;
+	}
 	new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
 	new_map[0].data.mux.function = parent->name;
 	new_map[0].data.mux.group = np->name;
-- 
1.7.9.5

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