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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-18 21:19:08 +0200
committerDavid S. Miller <davem@davemloft.net>2023-09-20 10:25:57 +0100
commitc306171d6914d12286098e5383ff1028a340e6fb (patch)
tree4bb5eec31098bcea4f0c4bf85e6e8b95d5fc78ab
parent6f0b985d3545e1b1fe58318ef09808ae7aa0c470 (diff)
net: dsa: b53: 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() is renamed to .remove(). Trivially convert these drivers from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/dsa/b53/b53_mmap.c6
-rw-r--r--drivers/net/dsa/b53/b53_srab.c8
2 files changed, 5 insertions, 9 deletions
diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c
index 5e39641ea887..3a89349dc918 100644
--- a/drivers/net/dsa/b53/b53_mmap.c
+++ b/drivers/net/dsa/b53/b53_mmap.c
@@ -324,14 +324,12 @@ static int b53_mmap_probe(struct platform_device *pdev)
return b53_switch_register(dev);
}
-static int b53_mmap_remove(struct platform_device *pdev)
+static void b53_mmap_remove(struct platform_device *pdev)
{
struct b53_device *dev = platform_get_drvdata(pdev);
if (dev)
b53_switch_remove(dev);
-
- return 0;
}
static void b53_mmap_shutdown(struct platform_device *pdev)
@@ -372,7 +370,7 @@ MODULE_DEVICE_TABLE(of, b53_mmap_of_table);
static struct platform_driver b53_mmap_driver = {
.probe = b53_mmap_probe,
- .remove = b53_mmap_remove,
+ .remove_new = b53_mmap_remove,
.shutdown = b53_mmap_shutdown,
.driver = {
.name = "b53-switch",
diff --git a/drivers/net/dsa/b53/b53_srab.c b/drivers/net/dsa/b53/b53_srab.c
index bcb44034404d..f3f95332ff17 100644
--- a/drivers/net/dsa/b53/b53_srab.c
+++ b/drivers/net/dsa/b53/b53_srab.c
@@ -657,17 +657,15 @@ static int b53_srab_probe(struct platform_device *pdev)
return b53_switch_register(dev);
}
-static int b53_srab_remove(struct platform_device *pdev)
+static void b53_srab_remove(struct platform_device *pdev)
{
struct b53_device *dev = platform_get_drvdata(pdev);
if (!dev)
- return 0;
+ return;
b53_srab_intr_set(dev->priv, false);
b53_switch_remove(dev);
-
- return 0;
}
static void b53_srab_shutdown(struct platform_device *pdev)
@@ -684,7 +682,7 @@ static void b53_srab_shutdown(struct platform_device *pdev)
static struct platform_driver b53_srab_driver = {
.probe = b53_srab_probe,
- .remove = b53_srab_remove,
+ .remove_new = b53_srab_remove,
.shutdown = b53_srab_shutdown,
.driver = {
.name = "b53-srab-switch",