nvmem: core: Fix a resource leak on error in nvmem_add_cells_from_of()

This doesn't call of_node_put() on the error path so it leads to a
memory leak.

Fixes: 0749aa25af82 ("nvmem: core: fix regression in of_nvmem_cell_get()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210129171430.11328-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 177f5bf..68ae6f2 100644 (file)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -713,6 +713,7 @@ static int nvmem_add_cells_from_of(struct nvmem_device *nvmem)
                                cell->name, nvmem->stride);
                        /* Cells already added will be freed later. */
                        kfree_const(cell->name);
+                       of_node_put(cell->np);
                        kfree(cell);
                        return -EINVAL;
                }