FAILED: patch "[PATCH] spi: mpfs: fix controller deregistration" failed to apply to 6.1-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 6.1-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-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 573c7db8fce91a1b07dd64a260bb44b9e6d05943
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026051526-expectant-iguana-5f72@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 573c7db8fce91a1b07dd64a260bb44b9e6d05943 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Thu, 9 Apr 2026 14:04:19 +0200
Subject: [PATCH] spi: mpfs: fix controller deregistration

Make sure to deregister the controller before disabling underlying
resources like interrupts during driver unbind.

Fixes: 9ac8d17694b6 ("spi: add support for microchip fpga spi controllers")
Cc: stable@vger.kernel.org	# 6.0
Cc: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260409120419.388546-21-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-mpfs.c b/drivers/spi/spi-mpfs.c
index 64d15a6188ac..989a379b0700 100644
--- a/drivers/spi/spi-mpfs.c
+++ b/drivers/spi/spi-mpfs.c
@@ -574,7 +574,7 @@ static int mpfs_spi_probe(struct platform_device *pdev)
 
 	mpfs_spi_init(host, spi);
 
-	ret = devm_spi_register_controller(&pdev->dev, host);
+	ret = spi_register_controller(host);
 	if (ret) {
 		mpfs_spi_disable_ints(spi);
 		mpfs_spi_disable(spi);
@@ -592,6 +592,8 @@ static void mpfs_spi_remove(struct platform_device *pdev)
 	struct spi_controller *host  = platform_get_drvdata(pdev);
 	struct mpfs_spi *spi = spi_controller_get_devdata(host);
 
+	spi_unregister_controller(host);
+
 	mpfs_spi_disable_ints(spi);
 	mpfs_spi_disable(spi);
 }