FAILED: patch "[PATCH] mtd: rawnand: arasan: Fix missing de-registration of NAND" failed to apply to 5.10-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 11e6831fd81468cf48155b9b3c11295c391da723
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024122708-spud-properly-0780@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 11e6831fd81468cf48155b9b3c11295c391da723 Mon Sep 17 00:00:00 2001
From: Maciej Andrzejewski <maciej.andrzejewski@m-works.net>
Date: Mon, 2 Dec 2024 19:58:36 +0100
Subject: [PATCH] mtd: rawnand: arasan: Fix missing de-registration of NAND

The NAND chip-selects are registered for the Arasan driver during
initialization but are not de-registered when the driver is unloaded. As a
result, if the driver is loaded again, the chip-selects remain registered
and busy, making them unavailable for use.

Fixes: 197b88fecc50 ("mtd: rawnand: arasan: Add new Arasan NAND controller")
Cc: stable@vger.kernel.org
Signed-off-by: Maciej Andrzejewski ICEYE <maciej.andrzejewski@m-works.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index 26b506107a1a..865754737f5f 100644
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -1478,8 +1478,15 @@ static int anfc_probe(struct platform_device *pdev)
 
 static void anfc_remove(struct platform_device *pdev)
 {
+	int i;
 	struct arasan_nfc *nfc = platform_get_drvdata(pdev);
 
+	for (i = 0; i < nfc->ncs; i++) {
+		if (nfc->cs_array[i]) {
+			gpiod_put(nfc->cs_array[i]);
+		}
+	}
+
 	anfc_chips_cleanup(nfc);
 }