From: Michael Walle michael@walle.cc
commit db3546d58b5a0fa581d9c9f2bdc2856fa6c5e43e upstream.
nvmem_add_cells() could return an error after some cells are already added to the provider. In this case, the added cells are not removed. Remove any registered cells if nvmem_add_cells() fails.
Fixes: fa72d847d68d7 ("nvmem: check the return value of nvmem_add_cells()") Cc: stable@vger.kernel.org Signed-off-by: Michael Walle michael@walle.cc Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Link: https://lore.kernel.org/r/20230127104015.23839-9-srinivas.kandagatla@linaro.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvmem/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -439,7 +439,7 @@ struct nvmem_device *nvmem_register(cons if (config->cells) { rval = nvmem_add_cells(nvmem, config->cells, config->ncells); if (rval) - goto err_teardown_compat; + goto err_remove_cells; }
rval = nvmem_add_cells_from_table(nvmem); @@ -456,7 +456,6 @@ struct nvmem_device *nvmem_register(cons
err_remove_cells: nvmem_device_remove_all_cells(nvmem); -err_teardown_compat: if (config->compat) nvmem_sysfs_remove_compat(nvmem, config); err_device_del: