@@ -1809,15 +1809,17 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
if (!child)
node = of_parse_phandle(qproc->dev->of_node,
"memory-region", 0);
- else
+ else {
node = of_parse_phandle(child, "memory-region", 0);
+ of_node_put(child);
+ }
ret = of_address_to_resource(node, 0, &r);
+ of_node_put(node);
if (ret) {
dev_err(qproc->dev, "unable to resolve mba region\n");
return ret;
}
- of_node_put(node);
qproc->mba_phys = r.start;
qproc->mba_size = resource_size(&r);
@@ -1828,14 +1830,15 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
} else {
child = of_get_child_by_name(qproc->dev->of_node, "mpss");
node = of_parse_phandle(child, "memory-region", 0);
+ of_node_put(child);
}
ret = of_address_to_resource(node, 0, &r);
+ of_node_put(node);
if (ret) {
dev_err(qproc->dev, "unable to resolve mpss region\n");
return ret;
}
- of_node_put(node);
qproc->mpss_phys = qproc->mpss_reloc = r.start;
qproc->mpss_size = resource_size(&r);
The device_node pointer is returned by of_parse_phandle() or of_get_child_by_name() with refcount incremented. We should use of_node_put() on it when done. This function only call of_node_put(node) when of_address_to_resource succeeds, missing error cases. Fixes: 278d744c46fd ("remoteproc: qcom: Fix potential device node leaks") Fixes: 051fb70fd4ea ("remoteproc: qcom: Driver for the self-authenticating Hexagon v5") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- drivers/remoteproc/qcom_q6v5_mss.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)