[PATCH] nvmem: core: add a missing of_node_put

[Christophe JAILLET]

'for_each_child_of_node' performs an of_node_get on each iteration, so a
return from the middle of the loop requires an of_node_put.

Fixes: e888d445ac33 ("nvmem: resolve cells from DT at registration time")
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
---
 drivers/nvmem/core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index bca671ff4e54..4375e52ba6c2 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -686,12 +686,15 @@ static int nvmem_add_cells_from_of(struct nvmem_device 
*nvmem)
                        continue;
                if (len < 2 * sizeof(u32)) {
                        dev_err(dev, "nvmem: invalid reg on %pOF\n", child);
+                       of_node_put(child);
                        return -EINVAL;
                }
 
                cell = kzalloc(sizeof(*cell), GFP_KERNEL);
-               if (!cell)
+               if (!cell) {
+                       of_node_put(child);
                        return -ENOMEM;
+               }
 
                cell->nvmem = nvmem;
                cell->np = of_node_get(child);
@@ -717,6 +720,7 @@ static int nvmem_add_cells_from_of(struct nvmem_device 
*nvmem)
                        kfree_const(cell->name);
                        of_node_put(cell->np);
                        kfree(cell);
+                       of_node_put(child);
                        return -EINVAL;
                }
 
-- 
2.27.0