net: rfkill: Correct return value in invalid parameter case

rfkill_set_hw_state_reason() does not return current combined
block state when its parameter @reason is invalid, that is
wrong according to its comments, fix it by correcting the
value returned.

Also reformat the WARN while at it.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://patch.msgid.link/1718287476-28227-1-git-send-email-quic_zijuhu@quicinc.com
[edit/reformat commit message, remove unneeded variable]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/rfkill/core.c

@@ -546,10 +546,10 @@ bool rfkill_set_hw_state_reason(struct rfkill *rfkill,
 
 	BUG_ON(!rfkill);
 
-	if (WARN(reason &
-	    ~(RFKILL_HARD_BLOCK_SIGNAL | RFKILL_HARD_BLOCK_NOT_OWNER),
-	    "hw_state reason not supported: 0x%lx", reason))
-		return blocked;
+	if (WARN(reason & ~(RFKILL_HARD_BLOCK_SIGNAL |
+			    RFKILL_HARD_BLOCK_NOT_OWNER),
+		 "hw_state reason not supported: 0x%lx", reason))
+		return rfkill_blocked(rfkill);
 
 	spin_lock_irqsave(&rfkill->lock, flags);
 	prev = !!(rfkill->hard_block_reasons & reason);