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authorAlexandru Tachici <alexandru.tachici@analog.com>2022-10-27 12:56:55 +0300
committerJakub Kicinski <kuba@kernel.org>2022-10-29 07:54:21 +0300
commit21ce2c121fa07b00b0906bd781590ea362e82ea2 (patch)
treeb46fb49dcbf5a7e7ec47cc3ece4bc5eae3412e74 /drivers/net/ethernet/adi
parent9201f60a1983c049319eff89081453ad32571a39 (diff)
downloadlinux-21ce2c121fa07b00b0906bd781590ea362e82ea2.tar.xz
net: ethernet: adi: adin1110: Fix notifiers
ADIN1110 was registering netdev_notifiers on each device probe. This leads to warnings/probe failures because of double registration of the same notifier when to adin1110/2111 devices are connected to the same system. Move the registration of netdev_notifiers in module init call, in this way multiple driver instances can use the same notifiers. Fixes: bc93e19d088b ("net: ethernet: adi: Add ADIN1110 support") Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Link: https://lore.kernel.org/r/20221027095655.89890-2-alexandru.tachici@analog.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/adi')
-rw-r--r--drivers/net/ethernet/adi/adin1110.c38
1 files changed, 29 insertions, 9 deletions
diff --git a/drivers/net/ethernet/adi/adin1110.c b/drivers/net/ethernet/adi/adin1110.c
index 1744d623999d..606c97610808 100644
--- a/drivers/net/ethernet/adi/adin1110.c
+++ b/drivers/net/ethernet/adi/adin1110.c
@@ -1512,16 +1512,15 @@ static struct notifier_block adin1110_switchdev_notifier = {
.notifier_call = adin1110_switchdev_event,
};
-static void adin1110_unregister_notifiers(void *data)
+static void adin1110_unregister_notifiers(void)
{
unregister_switchdev_blocking_notifier(&adin1110_switchdev_blocking_notifier);
unregister_switchdev_notifier(&adin1110_switchdev_notifier);
unregister_netdevice_notifier(&adin1110_netdevice_nb);
}
-static int adin1110_setup_notifiers(struct adin1110_priv *priv)
+static int adin1110_setup_notifiers(void)
{
- struct device *dev = &priv->spidev->dev;
int ret;
ret = register_netdevice_notifier(&adin1110_netdevice_nb);
@@ -1536,13 +1535,14 @@ static int adin1110_setup_notifiers(struct adin1110_priv *priv)
if (ret < 0)
goto err_sdev;
- return devm_add_action_or_reset(dev, adin1110_unregister_notifiers, NULL);
+ return 0;
err_sdev:
unregister_switchdev_notifier(&adin1110_switchdev_notifier);
err_netdev:
unregister_netdevice_notifier(&adin1110_netdevice_nb);
+
return ret;
}
@@ -1613,10 +1613,6 @@ static int adin1110_probe_netdevs(struct adin1110_priv *priv)
if (ret < 0)
return ret;
- ret = adin1110_setup_notifiers(priv);
- if (ret < 0)
- return ret;
-
for (i = 0; i < priv->cfg->ports_nr; i++) {
ret = devm_register_netdev(dev, priv->ports[i]->netdev);
if (ret < 0) {
@@ -1693,7 +1689,31 @@ static struct spi_driver adin1110_driver = {
.probe = adin1110_probe,
.id_table = adin1110_spi_id,
};
-module_spi_driver(adin1110_driver);
+
+static int __init adin1110_driver_init(void)
+{
+ int ret;
+
+ ret = adin1110_setup_notifiers();
+ if (ret < 0)
+ return ret;
+
+ ret = spi_register_driver(&adin1110_driver);
+ if (ret < 0) {
+ adin1110_unregister_notifiers();
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit adin1110_exit(void)
+{
+ adin1110_unregister_notifiers();
+ spi_unregister_driver(&adin1110_driver);
+}
+module_init(adin1110_driver_init);
+module_exit(adin1110_exit);
MODULE_DESCRIPTION("ADIN1110 Network driver");
MODULE_AUTHOR("Alexandru Tachici <alexandru.tachici@analog.com>");