Patch "mtd: core: fix error path for nvmem provider" has been added to the 6.3-stable tree

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This is a note to let you know that I've just added the patch titled

    mtd: core: fix error path for nvmem provider

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-error-path-for-nvmem-provider.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 e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@xxxxxxxx>
Date: Wed, 8 Mar 2023 09:20:20 +0100
Subject: mtd: core: fix error path for nvmem provider

From: Michael Walle <michael@xxxxxxxx>

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@xxxxxxxxxxxxxxx
Signed-off-by: Michael Walle <michael@xxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20230308082021.870459-3-michael@xxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mtd/mtdcore.c |   13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1023,10 +1023,14 @@ 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 */
@@ -1061,9 +1065,12 @@ 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);
 


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



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