This is a note to let you know that I've just added the patch titled mtd: core: fix nvmem error reporting to the 6.3-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: mtd-core-fix-nvmem-error-reporting.patch and it can be found in the queue-6.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 8bd1d24e6ca3c599dd455b0e1b22f77bab8290eb Mon Sep 17 00:00:00 2001 From: Michael Walle <michael@xxxxxxxx> Date: Wed, 8 Mar 2023 09:20:19 +0100 Subject: mtd: core: fix nvmem error reporting From: Michael Walle <michael@xxxxxxxx> commit 8bd1d24e6ca3c599dd455b0e1b22f77bab8290eb upstream. The master MTD will only have an associated device if CONFIG_MTD_PARTITIONED_MASTER is set, thus we cannot use dev_err() on mtd->dev. Instead use the parent device which is the physical flash memory. Fixes: 4b361cfa8624 ("mtd: core: add OTP nvmem provider support") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Michael Walle <michael@xxxxxxxx> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> Link: https://lore.kernel.org/linux-mtd/20230308082021.870459-2-michael@xxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mtd/mtdcore.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -939,6 +939,7 @@ static int mtd_nvmem_fact_otp_reg_read(v static int mtd_otp_nvmem_add(struct mtd_info *mtd) { + struct device *dev = mtd->dev.parent; struct nvmem_device *nvmem; ssize_t size; int err; @@ -952,7 +953,7 @@ static int mtd_otp_nvmem_add(struct mtd_ nvmem = mtd_otp_nvmem_register(mtd, "user-otp", size, mtd_nvmem_user_otp_reg_read); if (IS_ERR(nvmem)) { - dev_err(&mtd->dev, "Failed to register OTP NVMEM device\n"); + dev_err(dev, "Failed to register OTP NVMEM device\n"); return PTR_ERR(nvmem); } mtd->otp_user_nvmem = nvmem; @@ -970,7 +971,7 @@ static int mtd_otp_nvmem_add(struct mtd_ nvmem = mtd_otp_nvmem_register(mtd, "factory-otp", size, mtd_nvmem_fact_otp_reg_read); if (IS_ERR(nvmem)) { - dev_err(&mtd->dev, "Failed to register OTP NVMEM device\n"); + dev_err(dev, "Failed to register OTP NVMEM device\n"); err = PTR_ERR(nvmem); goto err; } Patches currently in stable-queue which might be from michael@xxxxxxxx are queue-6.3/mtd-core-fix-nvmem-error-reporting.patch queue-6.3/mtd-core-fix-error-path-for-nvmem-provider.patch queue-6.3/mtd-core-provide-unique-name-for-nvmem-device-take-two.patch