From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Mon, 20 Mar 2023 22:18:25 +0000 (-0600)
Subject: remoteproc: imx_rproc: Call of_node_put() on iteration error
X-Git-Tag: v6.1.29~100
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=948f81dac38854ae188edd90f74e60092621f16a;p=users%2Fdwmw2%2Flinux.git

remoteproc: imx_rproc: Call of_node_put() on iteration error

commit 5ef074e805ecfd9a16dbb7b6b88bbfa8abad7054 upstream.

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>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20230320221826.2728078-5-mathieu.poirier@linaro.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 596e1440cca56..8a2a7112678c2 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -460,6 +460,7 @@ 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;
 		}
@@ -472,10 +473,12 @@ 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);
 	}