From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Mon, 20 Mar 2023 16:18:23 -0600
Subject: [PATCH] remoteproc: st: Call of_node_put() on iteration error
References: bsc#1012628
Patch-mainline: 6.3.3
Git-commit: 8a74918948b40317a5b5bab9739d13dcb5de2784
commit 8a74918948b40317a5b5bab9739d13dcb5de2784 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: 3df52ed7f269 ("remoteproc: st: add reserved memory support")
Cc: stable@vger.kernel.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20230320221826.2728078-3-mathieu.poirier@linaro.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/remoteproc/st_remoteproc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
index a3268d95..e6bd3c7a 100644
--- a/drivers/remoteproc/st_remoteproc.c
+++ b/drivers/remoteproc/st_remoteproc.c
@@ -129,6 +129,7 @@ static int st_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
while (of_phandle_iterator_next(&it) == 0) {
rmem = of_reserved_mem_lookup(it.node);
if (!rmem) {
+ of_node_put(it.node);
dev_err(dev, "unable to acquire memory-region\n");
return -EINVAL;
}
@@ -150,8 +151,10 @@ static int st_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
it.node->name);
}
- if (!mem)
+ if (!mem) {
+ of_node_put(it.node);
return -ENOMEM;
+ }
rproc_add_carveout(rproc, mem);
index++;
--
2.35.3