From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH] FIT: Fix error path
Date: Wed, 17 Jan 2018 14:22:33 +0100 [thread overview]
Message-ID: <20180117132233.19806-1-s.hauer@pengutronix.de> (raw)
In case of error of_unflatten_dtb() returns an ERR_PTR. Make sure
that handle->root contains NULL in this case so that we do not call
of_delete_node on the error pointer in the exit path.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
common/image-fit.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/common/image-fit.c b/common/image-fit.c
index 81433e6ecf..db5d142147 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -584,6 +584,7 @@ struct fit_handle *fit_open(const char *filename, const char *config, bool verbo
{
struct fit_handle *handle = NULL;
const char *desc = "(no description)";
+ struct device_node *root;
int ret;
handle = xzalloc(sizeof(struct fit_handle));
@@ -596,12 +597,13 @@ struct fit_handle *fit_open(const char *filename, const char *config, bool verbo
goto err;
}
- handle->root = of_unflatten_dtb(handle->fit);
- if (IS_ERR(handle->root)) {
- ret = PTR_ERR(handle->root);
+ root = of_unflatten_dtb(handle->fit);
+ if (IS_ERR(root)) {
+ ret = PTR_ERR(root);
goto err;
}
+ handle->root = root;
handle->verify = verify;
of_property_read_string(handle->root, "description", &desc);
--
2.11.0
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