Re: [PATCH] nvmem: core: Fix a resource leak on error in nvmem_add_cells_from_of()

From: Srinivas Kandagatla
Date: Tue Jan 05 2021 - 11:24:23 EST




On 19/12/2020 10:55, Dan Carpenter wrote:
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@xxxxxxxxxx>

Applied, thanks

--srini
---
The kfree_const() could just be replaced with kfree(). Someone got over
excited converting things from kfree() to kfree_const().

drivers/nvmem/core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 177f5bf27c6d..68ae6f24b57f 100644
--- 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;
}