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authorMartin Pitt <martin.pitt@ubuntu.com>2013-04-08 11:30:01 +0200
committerJohannes Berg <johannes.berg@intel.com>2013-04-10 20:23:50 +0200
commit9ea927748ced4953f1e9a0f1fa1fdeacd1018b4e (patch)
treed4b71d02f8eaddb30fe08620389182abf68cb8eb
parentddc4db2e3d5393ede7a9222bb3b7522a603a4678 (diff)
mac80211_hwsim: Register and bind to driver
Properly register our mac80211_hwsim_driver, attach it to the platform bus. Bind newly created hwsim devices to that driver, so that our wlan devices get a proper "driver" sysfs attribute. This makes mac80211_hwsim interfaces work with NetworkManager. Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com> [fix an old and a new message to not be line-broken, also fix the driver_register error path] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c31
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 70b6ce61fea9..b5117f503f83 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -25,6 +25,7 @@
#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/ktime.h>
@@ -1687,6 +1688,7 @@ static void mac80211_hwsim_free(void)
debugfs_remove(data->debugfs_ps);
debugfs_remove(data->debugfs);
ieee80211_unregister_hw(data->hw);
+ device_release_driver(data->dev);
device_unregister(data->dev);
ieee80211_free_hw(data->hw);
}
@@ -1695,7 +1697,9 @@ static void mac80211_hwsim_free(void)
static struct device_driver mac80211_hwsim_driver = {
- .name = "mac80211_hwsim"
+ .name = "mac80211_hwsim",
+ .bus = &platform_bus_type,
+ .owner = THIS_MODULE,
};
static const struct net_device_ops hwsim_netdev_ops = {
@@ -2187,9 +2191,15 @@ static int __init init_mac80211_hwsim(void)
spin_lock_init(&hwsim_radio_lock);
INIT_LIST_HEAD(&hwsim_radios);
+ err = driver_register(&mac80211_hwsim_driver);
+ if (err)
+ return err;
+
hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
- if (IS_ERR(hwsim_class))
- return PTR_ERR(hwsim_class);
+ if (IS_ERR(hwsim_class)) {
+ err = PTR_ERR(hwsim_class);
+ goto failed_unregister_driver;
+ }
memset(addr, 0, ETH_ALEN);
addr[0] = 0x02;
@@ -2211,12 +2221,20 @@ static int __init init_mac80211_hwsim(void)
"hwsim%d", i);
if (IS_ERR(data->dev)) {
printk(KERN_DEBUG
- "mac80211_hwsim: device_create "
- "failed (%ld)\n", PTR_ERR(data->dev));
+ "mac80211_hwsim: device_create failed (%ld)\n",
+ PTR_ERR(data->dev));
err = -ENOMEM;
goto failed_drvdata;
}
data->dev->driver = &mac80211_hwsim_driver;
+ err = device_bind_driver(data->dev);
+ if (err != 0) {
+ printk(KERN_DEBUG
+ "mac80211_hwsim: device_bind_driver failed (%d)\n",
+ err);
+ goto failed_hw;
+ }
+
skb_queue_head_init(&data->pending);
SET_IEEE80211_DEV(hw, data->dev);
@@ -2515,6 +2533,8 @@ failed_drvdata:
ieee80211_free_hw(hw);
failed:
mac80211_hwsim_free();
+failed_unregister_driver:
+ driver_unregister(&mac80211_hwsim_driver);
return err;
}
module_init(init_mac80211_hwsim);
@@ -2527,5 +2547,6 @@ static void __exit exit_mac80211_hwsim(void)
mac80211_hwsim_free();
unregister_netdev(hwsim_mon);
+ driver_unregister(&mac80211_hwsim_driver);
}
module_exit(exit_mac80211_hwsim);