iwlegacy: 4965-rs: don't return rate from il4965_rs_update_rate_tbl

1) don't return rate from il4965_rs_update_rate_tbl
2) fix up il4965_rs_rate_scale_perform
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

drivers/net/wireless/iwlegacy/4965-rs.c

@@ -1731,9 +1731,8 @@ il4965_rs_stay_in_table(struct il_lq_sta *lq_sta, bool force_search)
 
 /*
  * setup rate table in uCode
- * return rate_n_flags as used in the table
  */
-static u32
+static void
 il4965_rs_update_rate_tbl(struct il_priv *il, struct il_rxon_context *ctx,
 			  struct il_lq_sta *lq_sta,
 			  struct il_scale_tbl_info *tbl, int idx, u8 is_green)
@@ -1744,8 +1743,6 @@ il4965_rs_update_rate_tbl(struct il_priv *il, struct il_rxon_context *ctx,
 	rate = il4965_rate_n_flags_from_tbl(il, tbl, idx, is_green);
 	il4965_rs_fill_link_cmd(il, lq_sta, rate);
 	il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false);
-
-	return rate;
 }
 
 /*
@@ -1774,7 +1771,6 @@ il4965_rs_rate_scale_perform(struct il_priv *il, struct sk_buff *skb,
 	u8 update_lq = 0;
 	struct il_scale_tbl_info *tbl, *tbl1;
 	u16 rate_scale_idx_msk = 0;
-	u32 rate;
 	u8 is_green = 0;
 	u8 active_tbl = 0;
 	u8 done_search = 0;
@@ -1858,8 +1854,7 @@ il4965_rs_rate_scale_perform(struct il_priv *il, struct sk_buff *skb,
 			tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 			/* get "active" rate info */
 			idx = il4965_hwrate_to_plcp_idx(tbl->current_rate);
-			rate =
-			    il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
+			il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
 						      is_green);
 		}
 		return;
@@ -2062,8 +2057,7 @@ il4965_rs_rate_scale_perform(struct il_priv *il, struct sk_buff *skb,
 lq_update:
 	/* Replace uCode's rate table for the destination station. */
 	if (update_lq)
-		rate =
-		    il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
+		il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
 					      is_green);
 
 	/* Should we stay with this modulation mode,