linux-kernel - [PATCH 4.4 071/183] soc/fsl/qe: Fix an error code in qe_pin

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Message-Id: <20200128135837.101811933@linuxfoundation.org>
Date:   Tue, 28 Jan 2020 15:04:50 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Li Yang <leoyang.li@....com>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 071/183] soc/fsl/qe: Fix an error code in qe_pin_request()

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit 5674a92ca4b7e5a6a19231edd10298d30324cd27 ]

We forgot to set "err" on this error path.

Fixes: 1a2d397a6eb5 ("gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags()")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Li Yang <leoyang.li@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/sysdev/qe_lib/gpio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/qe_lib/gpio.c b/arch/powerpc/sysdev/qe_lib/gpio.c
index 521e67a49dc40..4052e3d7edbd5 100644
--- a/arch/powerpc/sysdev/qe_lib/gpio.c
+++ b/arch/powerpc/sysdev/qe_lib/gpio.c
@@ -155,8 +155,10 @@ struct qe_pin *qe_pin_request(struct device_node *np, int index)
 	if (err < 0)
 		goto err0;
 	gc = gpio_to_chip(err);
-	if (WARN_ON(!gc))
+	if (WARN_ON(!gc)) {
+		err = -ENODEV;
 		goto err0;
+	}
 
 	if (!of_device_is_compatible(gc->of_node, "fsl,mpc8323-qe-pario-bank")) {
 		pr_debug("%s: tried to get a non-qe pin\n", __func__);
-- 
2.20.1