This is a note to let you know that I've just added the patch titled
nvmem: core: fix cell removal on error
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nvmem-core-fix-cell-removal-on-error.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From db3546d58b5a0fa581d9c9f2bdc2856fa6c5e43e Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@xxxxxxxx>
Date: Fri, 27 Jan 2023 10:40:13 +0000
Subject: nvmem: core: fix cell removal on error
From: Michael Walle <michael@xxxxxxxx>
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@xxxxxxxxxxxxxxx
Signed-off-by: Michael Walle <michael@xxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230127104015.23839-9-srinivas.kandagatla@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvmem/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -695,7 +695,7 @@ 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);
@@ -712,7 +712,6 @@ 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:
Patches currently in stable-queue which might be from michael@xxxxxxxx are
queue-5.10/nvmem-core-fix-cell-removal-on-error.patch
