bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

spi: dln2: fix controller deregistration

Browse Source 
Make sure to deregister the controller before disabling it to allow
SPI device drivers to do I/O during deregistration.

Fixes: 3d8c0d749d ("spi: add support for DLN-2 USB-SPI adapter")
Cc: stable@vger.kernel.org	# 4.0
Cc: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260409120419.388546-12-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold
2026-04-09 14:04:10 +02:00
committed by Mark Brown
parent e7c510e192
commit c353020fbf
1 changed files with 7 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/spi/spi-dln2.c
View File

@@ -758,7 +758,7 @@ static int dln2_spi_probe(struct platform_device *pdev)
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
ret = devm_spi_register_controller(&pdev->dev, host);
ret = spi_register_controller(host);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to register host\n");
goto exit_register;
@@ -783,10 +783,16 @@ static void dln2_spi_remove(struct platform_device *pdev)
struct spi_controller *host = platform_get_drvdata(pdev);
struct dln2_spi *dln2 = spi_controller_get_devdata(host);
spi_controller_get(host);
spi_unregister_controller(host);
pm_runtime_disable(&pdev->dev);
if (dln2_spi_enable(dln2, false) < 0)
dev_err(&pdev->dev, "Failed to disable SPI module\n");
spi_controller_put(host);
}
#ifdef CONFIG_PM_SLEEP