---

yaml
---
r: 111199
b: refs/heads/master
c: 96c8760
h: refs/heads/master
i:
  111197: 8812aaa
  111195: a7f3c73
  111191: a2681d0
  111183: 4cf077d
  111167: 86471e5
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 77fba13ccc3a2a3db100892a4a6cc5e2f8290cc7
+refs/heads/master: 96c87607ac8f9b0e641d11ba6e57f8ec0214ea1c

trunk/include/linux/rfkill.h

@@ -49,6 +49,7 @@ enum rfkill_state {
 	RFKILL_STATE_SOFT_BLOCKED = 0,	/* Radio output blocked */
 	RFKILL_STATE_UNBLOCKED    = 1,	/* Radio output allowed */
 	RFKILL_STATE_HARD_BLOCKED = 2,	/* Output blocked, non-overrideable */
+	RFKILL_STATE_MAX,		/* marker for last valid state */
 };
 
 /*

trunk/net/rfkill/rfkill.c

@@ -201,6 +201,8 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
 		 * BLOCK even a transmitter that is already in state
 		 * RFKILL_STATE_HARD_BLOCKED */
 		break;
+	default:
+		return -EINVAL;
 	}
 
 	if (force || state != rfkill->state) {
@@ -234,6 +236,9 @@ static void __rfkill_switch_all(const enum rfkill_type type,
 {
 	struct rfkill *rfkill;
 
+	if (unlikely(state >= RFKILL_STATE_MAX))
+		return;
+
 	rfkill_global_states[type].current_state = state;
 	list_for_each_entry(rfkill, &rfkill_list, node) {
 		if ((!rfkill->user_claim) && (rfkill->type == type)) {
@@ -329,9 +334,7 @@ int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state)
 {
 	enum rfkill_state oldstate;
 
-	if (state != RFKILL_STATE_SOFT_BLOCKED &&
-	    state != RFKILL_STATE_UNBLOCKED &&
-	    state != RFKILL_STATE_HARD_BLOCKED)
+	if (unlikely(state >= RFKILL_STATE_MAX))
 		return -EINVAL;
 
 	mutex_lock(&rfkill->mutex);
@@ -727,6 +730,8 @@ int __must_check rfkill_register(struct rfkill *rfkill)
 		return -EINVAL;
 	if (rfkill->type >= RFKILL_TYPE_MAX)
 		return -EINVAL;
+	if (rfkill->state >= RFKILL_STATE_MAX)
+		return -EINVAL;
 
 	snprintf(dev->bus_id, sizeof(dev->bus_id),
 		 "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);