mac80211: make ieee80211_wep_init() return void

This function always returns 0, so there's no point in returning int.
Make it void and remove the impossible error-path when calling it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-11-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/main.c

@@ -1185,10 +1185,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (!local->hw.weight_multiplier)
 		local->hw.weight_multiplier = 1;
 
-	result = ieee80211_wep_init(local);
+	ieee80211_wep_init(local);
-	if (result < 0)
-		wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n",
-			    result);
 
 	local->hw.conf.flags = IEEE80211_CONF_IDLE;
 

net/mac80211/wep.c

@@ -22,12 +22,10 @@
 #include "wep.h"
 
 
-int ieee80211_wep_init(struct ieee80211_local *local)
+void ieee80211_wep_init(struct ieee80211_local *local)
 {
 	/* start WEP IV from a random value */
 	get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN);
-
-	return 0;
 }
 
 static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen)

net/mac80211/wep.h

@@ -13,7 +13,7 @@
 #include "ieee80211_i.h"
 #include "key.h"
 
-int ieee80211_wep_init(struct ieee80211_local *local);
+void ieee80211_wep_init(struct ieee80211_local *local);
 int ieee80211_wep_encrypt_data(struct arc4_ctx *ctx, u8 *rc4key,
 				size_t klen, u8 *data, size_t data_len);
 int ieee80211_wep_encrypt(struct ieee80211_local *local,