From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Wen Yang <wen.yang99@zte.com.cn>,
Linus Walleij <linus.walleij@linaro.org>,
Jun Nie <jun.nie@linaro.org>,
linux-gpio@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 5.1 027/375] pinctrl: zte: fix leaked of_node references
Date: Wed, 22 May 2019 15:15:27 -0400 [thread overview]
Message-ID: <20190522192115.22666-27-sashal@kernel.org> (raw)
In-Reply-To: <20190522192115.22666-1-sashal@kernel.org>
From: Wen Yang <wen.yang99@zte.com.cn>
[ Upstream commit 02d15f0d80720545f1f4922a1550ea4aaad4e152 ]
The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
./drivers/pinctrl/zte/pinctrl-zx.c:415:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 407, but without a corresponding object release within this function.
./drivers/pinctrl/zte/pinctrl-zx.c:422:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 407, but without a corresponding object release within this function.
./drivers/pinctrl/zte/pinctrl-zx.c:436:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 407, but without a corresponding object release within this function.
./drivers/pinctrl/zte/pinctrl-zx.c:444:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 407, but without a corresponding object release within this function.
./drivers/pinctrl/zte/pinctrl-zx.c:448:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 407, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Jun Nie <jun.nie@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/zte/pinctrl-zx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/zte/pinctrl-zx.c b/drivers/pinctrl/zte/pinctrl-zx.c
index caa44dd2880a8..3cb69309912ba 100644
--- a/drivers/pinctrl/zte/pinctrl-zx.c
+++ b/drivers/pinctrl/zte/pinctrl-zx.c
@@ -411,6 +411,7 @@ int zx_pinctrl_init(struct platform_device *pdev,
}
zpctl->aux_base = of_iomap(np, 0);
+ of_node_put(np);
if (!zpctl->aux_base)
return -ENOMEM;
--
2.20.1
parent reply other threads:[~2019-05-22 19:15 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20190522192115.22666-1-sashal@kernel.org>]
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