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Message-Id: <20180528100253.414354642@linuxfoundation.org>
Date:   Mon, 28 May 2018 12:03:01 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.16 148/272] remoteproc: imx_rproc: Fix an error handling path in imx_rproc_probe()

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

[ Upstream commit de6f83f85be94e0b7d0d324c29ccc9d78a6bb4e7 ]

If 'of_device_get_match_data()' fails, we must undo the previous
'rproc_alloc()' call.

Fixes: a0ff4aa6f010 ("remoteproc: imx_rproc: add a NXP/Freescale imx_rproc driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/remoteproc/imx_rproc.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -339,8 +339,10 @@ static int imx_rproc_probe(struct platfo
 	}
 
 	dcfg = of_device_get_match_data(dev);
-	if (!dcfg)
-		return -EINVAL;
+	if (!dcfg) {
+		ret = -EINVAL;
+		goto err_put_rproc;
+	}
 
 	priv = rproc->priv;
 	priv->rproc = rproc;


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