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| author | Karl Mehltretter <kmehltretter@gmail.com> | 2026-08-16 18:30:27 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2026-09-04 19:07:31 +0200 |
| commit | 26300879cd8e4612dce66bb8f6ff7cd35fcf3e59 (patch) | |
| tree | 9b1a940d497f3d8801142e0d9699332f82572284 /include/linux | |
| parent | 63d6cace2c4a7f36c1cb44f1bb5e0f3ef19e5c7f (diff) | |
mtd: core: avoid double-free of OTP NVMEM device
If factory OTP setup fails after the user OTP NVMEM device has been
registered, mtd_otp_nvmem_add() unregisters the user device but leaves
mtd->otp_user_nvmem set. On an error, the caller unregisters it again.
For -EOPNOTSUPP, registration continues and normal teardown unregisters
it again.
Clear mtd->otp_user_nvmem after unregistering it.
Fixes: e0489f6e221f ("mtd: core: fix error path for nvmem provider")
Fixes: fe0b8213c012 ("mtd: core: Don't fail mtd_otp_nvmem_add() if OTP is unsupported")
Assisted-by: Codex:gpt-5.6-sol
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions