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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-11-16 20:33:07 +0300
committerSuzuki K Poulose <suzuki.poulose@arm.com>2023-11-16 21:17:23 +0300
commit32d9a78bb9ff9da0082ea6fdb038bc1bf81f6992 (patch)
treea8423e6f637cc5ba3b873ba2d6b9eb7d49aa2ff2 /drivers/hwtracing
parent98881b34ce90c031164597f73603f3219da79658 (diff)
downloadlinux-32d9a78bb9ff9da0082ea6fdb038bc1bf81f6992.tar.xz
coresight: ultrasoc-smb: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20231116173301.708873-14-u.kleine-koenig@pengutronix.de
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/ultrasoc-smb.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/hwtracing/coresight/ultrasoc-smb.c b/drivers/hwtracing/coresight/ultrasoc-smb.c
index 6e32d31a95fe..2092433ff86e 100644
--- a/drivers/hwtracing/coresight/ultrasoc-smb.c
+++ b/drivers/hwtracing/coresight/ultrasoc-smb.c
@@ -601,15 +601,13 @@ static int smb_probe(struct platform_device *pdev)
return 0;
}
-static int smb_remove(struct platform_device *pdev)
+static void smb_remove(struct platform_device *pdev)
{
struct smb_drv_data *drvdata = platform_get_drvdata(pdev);
smb_unregister_sink(drvdata);
smb_config_inport(&pdev->dev, false);
-
- return 0;
}
#ifdef CONFIG_ACPI
@@ -627,7 +625,7 @@ static struct platform_driver smb_driver = {
.suppress_bind_attrs = true,
},
.probe = smb_probe,
- .remove = smb_remove,
+ .remove_new = smb_remove,
};
module_platform_driver(smb_driver);