Bluetooth: mgmt: improve get_adv_instance_flags() readability

Switch if and else conditions to replace a negative statement by a
positive one which makes the condition more readable.
Signed-off-by: NFlorian Grandel <fgrandel@gmail.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/mgmt.c

@@ -962,26 +962,28 @@ static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
 	u32 flags;
 	struct adv_info *adv_instance;
 
-	if (instance != 0x00) {
-		adv_instance = hci_find_adv_instance(hdev, instance);
-
-		/* Return 0 when we got an invalid instance identifier. */
-		if (!adv_instance)
-			return 0;
-
-		return adv_instance->flags;
-	}
-
-	/* Instance 0 always manages the "Tx Power" and "Flags" fields */
+	if (instance == 0x00) {
+		/* Instance 0 always manages the "Tx Power" and "Flags"
+		 * fields
+		 */
 		flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
 
-	/* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting corresponds
-	 * to the "connectable" instance flag.
+		/* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
+		 * corresponds to the "connectable" instance flag.
 		 */
 		if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
 			flags |= MGMT_ADV_FLAG_CONNECTABLE;
 
 		return flags;
+	}
+
+	adv_instance = hci_find_adv_instance(hdev, instance);
+
+	/* Return 0 when we got an invalid instance identifier. */
+	if (!adv_instance)
+		return 0;
+
+	return adv_instance->flags;
 }
 
 static u8 get_adv_instance_scan_rsp_len(struct hci_dev *hdev, u8 instance)