batman-adv: correct batadv_wifi_* kernel-doc

The original kernel documentation for the batadv_wifi_* functions contained
copy+paste errors. Correct them to make it easier understandable.

Signed-off-by: Sven Eckelmann <sven@narfation.org>

net/batman-adv/hard-interface.c

@@ -971,9 +971,9 @@ static int batadv_hard_if_event_meshif(unsigned long event,
 /**
  * batadv_wifi_net_device_insert() - save information about wifi net_device
  * @net_dev: net_device to add to batadv_wifi_net_devices
- * @wifi_flags: net_device which generated an event
+ * @wifi_flags: extracted batadv_hard_iface_wifi_flags of a net_device
  *
- * Return: 0 on result, negative value on error
+ * Return: 0 on success, negative value on error
  */
 static int
 batadv_wifi_net_device_insert(struct net_device *net_dev, u32 wifi_flags)
@@ -1006,7 +1006,7 @@ err_free:
 
 /**
  * batadv_wifi_net_device_remove() - remove information about wifi net_device
- * @device_state: wifi net_device state to remove from batadv_wifi_net_device_state
+ * @device_state: wifi net_device state to remove from batadv_wifi_net_devices
  */
 static void
 batadv_wifi_net_device_remove(struct batadv_wifi_net_device_state *device_state)

net/batman-adv/hard-interface.h

@@ -126,7 +126,7 @@ out:
 /**
  * batadv_is_cfg80211() - check if the given hardif is a cfg80211
  *  wifi interface
- * @wifi_flags: extracted batadv_hard_iface_wifi_flagss of an net_device
+ * @wifi_flags: extracted batadv_hard_iface_wifi_flags of a net_device
  *
  * Return: true if the net device is a cfg80211 wireless device, false
  *  otherwise.
@@ -143,7 +143,7 @@ static inline bool batadv_is_cfg80211(u32 wifi_flags)
 
 /**
  * batadv_is_wifi() - check if flags belong to wifi interface
- * @wifi_flags: extracted batadv_hard_iface_wifi_flagss of an net_device
+ * @wifi_flags: extracted batadv_hard_iface_wifi_flags of a net_device
  *
  * Return: true if the net device is a 802.11 wireless device, false otherwise.
  */