From: Michael Walle michael@walle.cc
commit e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 upstream.
If mtd_otp_nvmem_add() fails, the partitions won't be removed because there is simply no call to del_mtd_partitions(). Unfortunately, add_mtd_partitions() will print all partitions to the kernel console. If mtd_otp_nvmem_add() returns -EPROBE_DEFER this would print the partitions multiple times to the kernel console. Instead move mtd_otp_nvmem_add() to the beginning of the function.
Fixes: 4b361cfa8624 ("mtd: core: add OTP nvmem provider support") Cc: stable@vger.kernel.org Signed-off-by: Michael Walle michael@walle.cc Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20230308082021.870459-3-michael@walle.cc Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mtd/mtdcore.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
--- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1019,10 +1019,14 @@ int mtd_device_parse_register(struct mtd
mtd_set_dev_defaults(mtd);
+ ret = mtd_otp_nvmem_add(mtd); + if (ret) + goto out; + if (IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER)) { ret = add_mtd_device(mtd); if (ret) - return ret; + goto out; }
/* Prefer parsed partitions over driver-provided fallback */ @@ -1057,9 +1061,12 @@ int mtd_device_parse_register(struct mtd register_reboot_notifier(&mtd->reboot_notifier); }
- ret = mtd_otp_nvmem_add(mtd); - out: + if (ret) { + nvmem_unregister(mtd->otp_user_nvmem); + nvmem_unregister(mtd->otp_factory_nvmem); + } + if (ret && device_is_registered(&mtd->dev)) del_mtd_device(mtd);