FAILED: patch "[PATCH] spi: syncuacer: fix controller deregistration" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] spi: syncuacer: fix controller deregistration" failed to apply to 5.15-stable tree

[gregkh]

The patch below does not apply to the 5.15-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-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 75d849c3452e9611de031db45b3149ba9a99035f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026051242-wife-blandness-fbd9@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 75d849c3452e9611de031db45b3149ba9a99035f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 10 Apr 2026 10:17:50 +0200
Subject: [PATCH] spi: syncuacer: fix controller deregistration

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

Fixes: b0823ee35cf9 ("spi: Add spi driver for Socionext SynQuacer platform")
Cc: stable@vger.kernel.org	# 5.3
Cc: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410081757.503099-21-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-synquacer.c b/drivers/spi/spi-synquacer.c
index d0a875249910..290c439897c4 100644
--- a/drivers/spi/spi-synquacer.c
+++ b/drivers/spi/spi-synquacer.c
@@ -716,7 +716,7 @@ static int synquacer_spi_probe(struct platform_device *pdev)
 	pm_runtime_set_active(sspi->dev);
 	pm_runtime_enable(sspi->dev);
 
-	ret = devm_spi_register_controller(sspi->dev, host);
+	ret = spi_register_controller(host);
 	if (ret)
 		goto disable_pm;
 
@@ -737,9 +737,15 @@ static void synquacer_spi_remove(struct platform_device *pdev)
 	struct spi_controller *host = platform_get_drvdata(pdev);
 	struct synquacer_spi *sspi = spi_controller_get_devdata(host);
 
+	spi_controller_get(host);
+
+	spi_unregister_controller(host);
+
 	pm_runtime_disable(sspi->dev);
 
 	clk_disable_unprepare(sspi->clk);
+
+	spi_controller_put(host);
 }
 
 static int __maybe_unused synquacer_spi_suspend(struct device *dev)

[PATCH 5.15.y] spi: syncuacer: fix controller deregistration

[Sasha Levin]

From: Johan Hovold <johan@kernel.org>

[ Upstream commit 75d849c3452e9611de031db45b3149ba9a99035f ]

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

Fixes: b0823ee35cf9 ("spi: Add spi driver for Socionext SynQuacer platform")
Cc: stable@vger.kernel.org	# 5.3
Cc: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410081757.503099-21-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
[ renamed spi_controller/host to spi_master/master and kept int return type with `return 0;` ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-synquacer.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-synquacer.c b/drivers/spi/spi-synquacer.c
index dc188f9202c97..4422fe9d92ff9 100644
--- a/drivers/spi/spi-synquacer.c
+++ b/drivers/spi/spi-synquacer.c
@@ -719,7 +719,7 @@ static int synquacer_spi_probe(struct platform_device *pdev)
 	pm_runtime_set_active(sspi->dev);
 	pm_runtime_enable(sspi->dev);
 
-	ret = devm_spi_register_master(sspi->dev, master);
+	ret = spi_register_master(master);
 	if (ret)
 		goto disable_pm;
 
@@ -740,10 +740,16 @@ static int synquacer_spi_remove(struct platform_device *pdev)
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct synquacer_spi *sspi = spi_master_get_devdata(master);
 
+	spi_master_get(master);
+
+	spi_unregister_master(master);
+
 	pm_runtime_disable(sspi->dev);
 
 	clk_disable_unprepare(sspi->clk);
 
+	spi_master_put(master);
+
 	return 0;
 }
 
-- 
2.53.0