diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/812-v6.2-0013-nvmem-core-fix-device-node-refcounting.patch')
-rw-r--r-- | target/linux/generic/backport-5.10/812-v6.2-0013-nvmem-core-fix-device-node-refcounting.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/target/linux/generic/backport-5.10/812-v6.2-0013-nvmem-core-fix-device-node-refcounting.patch b/target/linux/generic/backport-5.10/812-v6.2-0013-nvmem-core-fix-device-node-refcounting.patch deleted file mode 100644 index a229c303ad..0000000000 --- a/target/linux/generic/backport-5.10/812-v6.2-0013-nvmem-core-fix-device-node-refcounting.patch +++ /dev/null @@ -1,48 +0,0 @@ -From edcf2fb660526b5ed29f93bd17328a2b4835c8b2 Mon Sep 17 00:00:00 2001 -From: Michael Walle <michael@walle.cc> -Date: Fri, 27 Jan 2023 10:40:12 +0000 -Subject: [PATCH] nvmem: core: fix device node refcounting - -In of_nvmem_cell_get(), of_get_next_parent() is used on cell_np. This -will decrement the refcount on cell_np, but cell_np is still used later -in the code. Use of_get_parent() instead and of_node_put() in the -appropriate places. - -Fixes: 69aba7948cbe ("nvmem: Add a simple NVMEM framework for consumers") -Fixes: 7ae6478b304b ("nvmem: core: rework nvmem cell instance creation") -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/20230127104015.23839-8-srinivas.kandagatla@linaro.org -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - drivers/nvmem/core.c | 11 ++++++++--- - 1 file changed, 8 insertions(+), 3 deletions(-) - ---- a/drivers/nvmem/core.c -+++ b/drivers/nvmem/core.c -@@ -1237,16 +1237,21 @@ struct nvmem_cell *of_nvmem_cell_get(str - if (!cell_np) - return ERR_PTR(-ENOENT); - -- nvmem_np = of_get_next_parent(cell_np); -- if (!nvmem_np) -+ nvmem_np = of_get_parent(cell_np); -+ if (!nvmem_np) { -+ of_node_put(cell_np); - return ERR_PTR(-EINVAL); -+ } - - nvmem = __nvmem_device_get(nvmem_np, device_match_of_node); - of_node_put(nvmem_np); -- if (IS_ERR(nvmem)) -+ if (IS_ERR(nvmem)) { -+ of_node_put(cell_np); - return ERR_CAST(nvmem); -+ } - - cell_entry = nvmem_find_cell_entry_by_node(nvmem, cell_np); -+ of_node_put(cell_np); - if (!cell_entry) { - __nvmem_device_put(nvmem); - return ERR_PTR(-ENOENT); |