From: Miaoqian Lin <linmq006@gmail.com>
To: Bjorn Andersson <bjorn.andersson@linaro.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>, Peng Fan <peng.fan@nxp.com>,
Oleksij Rempel <linux@rempel-privat.de>,
linux-remoteproc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init
Date: Thu, 12 May 2022 08:55:58 +0400 [thread overview]
Message-ID: <20220512045558.7142-1-linmq006@gmail.com> (raw)
of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not needed anymore.
This function has two paths missing of_node_put().
Fixes: 6e962bfe56b9 ("remoteproc: imx_rproc: add missing of_node_put")
Fixes: a0ff4aa6f010 ("remoteproc: imx_rproc: add a NXP/Freescale imx_rproc driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
drivers/remoteproc/imx_rproc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 7a096f1891e6..6363ed40854a 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -559,16 +559,17 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
node = of_parse_phandle(np, "memory-region", a);
/* Not map vdevbuffer, vdevring region */
- if (!strncmp(node->name, "vdev", strlen("vdev")))
+ if (!strncmp(node->name, "vdev", strlen("vdev"))) {
+ of_node_put(node);
continue;
+ }
err = of_address_to_resource(node, 0, &res);
+ of_node_put(node);
if (err) {
dev_err(dev, "unable to resolve memory region\n");
return err;
}
- of_node_put(node);
-
if (b >= IMX_RPROC_MEM_MAX)
break;
--
2.25.1
next reply other threads:[~2022-05-12 4:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-12 4:55 Miaoqian Lin [this message]
2022-06-22 16:48 ` [PATCH] remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init Mathieu Poirier
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