From:   Mathieu Poirier <mathieu.poirier@linaro.org>
To:     andersson@kernel.org
Cc:     shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, linux-imx@nxp.com, patrice.chotard@foss.st.com,
        mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com,
        arnaud.pouliquen@st.com, hongxing.zhu@nxp.com, peng.fan@nxp.com,
        shengjiu.wang@nxp.com, linux-remoteproc@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] remoteproc: imx_rproc: Call of_node_put() on iteration error
Date:   Mon, 20 Mar 2023 16:18:25 -0600
Message-Id: <20230320221826.2728078-5-mathieu.poirier@linaro.org>
In-Reply-To: <20230320221826.2728078-1-mathieu.poirier@linaro.org>
References: <20230320221826.2728078-1-mathieu.poirier@linaro.org>
MIME-Version: 1.0
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Precedence: bulk

Function of_phandle_iterator_next() calls of_node_put() on the last
device_node it iterated over, but when the loop exits prematurely it has
to be called explicitly.

Fixes: b29b4249f8f0 ("remoteproc: imx_rproc: add i.MX specific parse fw hook")
Cc: stable@vger.kernel.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/remoteproc/imx_rproc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 9fc978e0393c..0ab840dc7e97 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -541,6 +541,7 @@ static int imx_rproc_prepare(struct rproc *rproc)
 
 		rmem = of_reserved_mem_lookup(it.node);
 		if (!rmem) {
+			of_node_put(it.node);
 			dev_err(priv->dev, "unable to acquire memory-region\n");
 			return -EINVAL;
 		}
@@ -553,10 +554,12 @@ static int imx_rproc_prepare(struct rproc *rproc)
 					   imx_rproc_mem_alloc, imx_rproc_mem_release,
 					   it.node->name);
 
-		if (mem)
+		if (mem) {
 			rproc_coredump_add_segment(rproc, da, rmem->size);
-		else
+		} else {
+			of_node_put(it.node);
 			return -ENOMEM;
+		}
 
 		rproc_add_carveout(rproc, mem);
 	}
-- 
2.25.1