cfg80211: properly name driver locking
Currently we call that cfg80211_put_dev(), but that is
misleading. With the new convention of using 'rdev' for
registered_device variables, also call that function
cfg80211_unlock_rdev().
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 83ec719..c6813be 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -171,12 +171,6 @@
return drv;
}
-void cfg80211_put_dev(struct cfg80211_registered_device *drv)
-{
- BUG_ON(IS_ERR(drv));
- mutex_unlock(&drv->mtx);
-}
-
/* requires cfg80211_mutex to be held */
int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
char *newname)
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 4554453..92da612 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -146,7 +146,7 @@
* If successful, it returns non-NULL and also locks
* the driver's mutex!
*
- * This means that you need to call cfg80211_put_dev()
+ * This means that you need to call cfg80211_unlock_rdev()
* before being allowed to acquire &cfg80211_mutex!
*
* This is necessary because we need to lock the global
@@ -170,7 +170,11 @@
extern struct cfg80211_registered_device *
cfg80211_get_dev_from_ifindex(int ifindex);
-extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
+static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *drv)
+{
+ BUG_ON(IS_ERR(drv) || !drv);
+ mutex_unlock(&drv->mtx);
+}
/* free object */
extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 44c520c..df22048 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -411,14 +411,14 @@
if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
goto out_free;
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
return genlmsg_unicast(msg, info->snd_pid);
out_free:
nlmsg_free(msg);
out_err:
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
return -ENOBUFS;
}
@@ -737,7 +737,7 @@
goto out_free;
dev_put(netdev);
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
return genlmsg_unicast(msg, info->snd_pid);
@@ -745,7 +745,7 @@
nlmsg_free(msg);
out_err:
dev_put(netdev);
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
return -ENOBUFS;
}
@@ -853,7 +853,7 @@
unlock:
dev_put(dev);
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
unlock_rtnl:
rtnl_unlock();
return err;
@@ -906,7 +906,7 @@
type, err ? NULL : &flags, ¶ms);
unlock:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
unlock_rtnl:
rtnl_unlock();
return err;
@@ -934,7 +934,7 @@
err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
unlock_rtnl:
rtnl_unlock();
return err;
@@ -1037,7 +1037,7 @@
err = -ENOBUFS;
nlmsg_free(msg);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -1097,7 +1097,7 @@
#endif
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
@@ -1163,7 +1163,7 @@
err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -1211,7 +1211,7 @@
#endif
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
@@ -1306,7 +1306,7 @@
err = call(&drv->wiphy, dev, ¶ms);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -1338,7 +1338,7 @@
err = drv->ops->del_beacon(&drv->wiphy, dev);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -1572,7 +1572,7 @@
cb->args[1] = sta_idx;
err = skb->len;
out_err:
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
out_rtnl:
rtnl_unlock();
@@ -1624,7 +1624,7 @@
out_free:
nlmsg_free(msg);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -1760,7 +1760,7 @@
out:
if (params.vlan)
dev_put(params.vlan);
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -1865,7 +1865,7 @@
out:
if (params.vlan)
dev_put(params.vlan);
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -1904,7 +1904,7 @@
err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2035,7 +2035,7 @@
cb->args[1] = path_idx;
err = skb->len;
out_err:
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
out_rtnl:
rtnl_unlock();
@@ -2093,7 +2093,7 @@
out_free:
nlmsg_free(msg);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2142,7 +2142,7 @@
err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2190,7 +2190,7 @@
err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2222,7 +2222,7 @@
err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2278,7 +2278,7 @@
err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2444,7 +2444,7 @@
err = -EMSGSIZE;
out:
/* Cleanup */
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2550,7 +2550,7 @@
out:
/* cleanup */
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -2890,7 +2890,7 @@
kfree(request);
}
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
out_rtnl:
rtnl_unlock();
@@ -3007,7 +3007,7 @@
cb->args[1] = idx;
err = skb->len;
- cfg80211_put_dev(dev);
+ cfg80211_unlock_rdev(dev);
out_put_netdev:
dev_put(netdev);
@@ -3112,7 +3112,7 @@
ssid, ssid_len, ie, ie_len);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3259,7 +3259,7 @@
&crypto);
out:
- cfg80211_put_dev(rdev);
+ cfg80211_unlock_rdev(rdev);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3321,7 +3321,7 @@
err = cfg80211_mlme_deauth(drv, dev, bssid, ie, ie_len, reason_code);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3383,7 +3383,7 @@
err = cfg80211_mlme_disassoc(drv, dev, bssid, ie, ie_len, reason_code);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3464,7 +3464,7 @@
err = cfg80211_join_ibss(drv, dev, &ibss);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3501,7 +3501,7 @@
err = cfg80211_leave_ibss(drv, dev, false);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3538,7 +3538,7 @@
rdev->testmode_info = NULL;
}
- cfg80211_put_dev(rdev);
+ cfg80211_unlock_rdev(rdev);
unlock_rtnl:
rtnl_unlock();
@@ -3707,7 +3707,7 @@
err = cfg80211_connect(drv, dev, &connect);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
@@ -3748,7 +3748,7 @@
err = cfg80211_disconnect(drv, dev, reason, true);
out:
- cfg80211_put_dev(drv);
+ cfg80211_unlock_rdev(drv);
dev_put(dev);
unlock_rtnl:
rtnl_unlock();
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 9253994..1625faf 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -28,8 +28,6 @@
if (!dev)
goto out;
- WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
-
/*
* This must be before sending the other events!
* Otherwise, wpa_supplicant gets completely confused with
@@ -636,7 +634,7 @@
} else
nl80211_send_scan_start(rdev, dev);
out:
- cfg80211_put_dev(rdev);
+ cfg80211_unlock_rdev(rdev);
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwscan);
@@ -945,7 +943,7 @@
}
out:
- cfg80211_put_dev(rdev);
+ cfg80211_unlock_rdev(rdev);
return res;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwscan);
