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openwrt/target/linux/generic/backport-5.10/805-v5.15-0003-nvmem-core-fix-error-handling-while-validating-keepo.patch
John Audia 461072fc7b kernel: bump 5.10 to 5.10.168
Manually rebased:
  backport-5.10/804-v5.14-0001-nvmem-core-allow-specifying-of_node.patch

Removed upstreamed:
  generic-backport/807-v5.17-0003-nvmem-core-Fix-a-conflict-between-MTD-and-NVMEM-on-w.patch[1]

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.168&id=34ec4c7831c416ac56619477f1701986634a7efc

Build system: x86_64
Build-tested: ramips/tplink_archer-a6-v3
Run-tested: ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2023-02-18 17:41:23 +01:00

37 lines
1.2 KiB
Diff

From de0534df93474f268486c486ea7e01b44a478026 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Fri, 6 Aug 2021 09:59:47 +0100
Subject: [PATCH] nvmem: core: fix error handling while validating keepout
regions
Current error path on failure of validating keepout regions is calling
put_device, eventhough the device is not even registered at that point.
Fix this by adding proper error handling of freeing ida and nvmem.
Fixes: fd3bb8f54a88 ("nvmem: core: Add support for keepout regions")
Cc: <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210806085947.22682-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/nvmem/core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -827,8 +827,11 @@ struct nvmem_device *nvmem_register(cons
if (nvmem->nkeepout) {
rval = nvmem_validate_keepouts(nvmem);
- if (rval)
- goto err_put_device;
+ if (rval) {
+ ida_free(&nvmem_ida, nvmem->id);
+ kfree(nvmem);
+ return ERR_PTR(rval);
+ }
}
dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name);