[PATCH BlueZ 4/4] hog-lib: Fix not handling BT_ATT_OP_HANDLE_NFY_MULT

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From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>

This is a temporary fix for not handling BT_ATT_OP_HANDLE_NFY_MULT in
GAttr so the code will use g_attrib_attach_client to attach the
bt_gatt_client instance which is then used to register notifications
including those sent with BT_ATT_OP_HANDLE_NFY_MULT.

Fixes: https://github.com/bluez/bluez/issues/71
---
 profiles/input/hog-lib.c | 23 +++++++++++++++++++++--
 src/device.c             |  1 +
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/profiles/input/hog-lib.c b/profiles/input/hog-lib.c
index 021db386f3b7..7ff1ede3db35 100644
--- a/profiles/input/hog-lib.c
+++ b/profiles/input/hog-lib.c
@@ -374,6 +374,15 @@ static void report_value_cb(const guint8 *pdu, guint16 len, gpointer user_data)
 		error("bt_uhid_send: %s (%d)", strerror(-err), -err);
 }
 
+static void report_notify_destroy(void *user_data)
+{
+	struct report *report = user_data;
+
+	DBG("");
+
+	report->notifyid = 0;
+}
+
 static void report_ccc_written_cb(guint8 status, const guint8 *pdu,
 					guint16 plen, gpointer user_data)
 {
@@ -393,7 +402,13 @@ static void report_ccc_written_cb(guint8 status, const guint8 *pdu,
 	report->notifyid = g_attrib_register(hog->attrib,
 					ATT_OP_HANDLE_NOTIFY,
 					report->value_handle,
-					report_value_cb, report, NULL);
+					report_value_cb, report,
+					report_notify_destroy);
+	if (!report->notifyid) {
+		error("Unable to register report notification: handle 0x%04x",
+					report->value_handle);
+		goto remove;
+	}
 
 	DBG("Report characteristic descriptor written: notifications enabled");
 
@@ -1798,7 +1813,11 @@ bool bt_hog_attach(struct bt_hog *hog, void *gatt)
 		r->notifyid = g_attrib_register(hog->attrib,
 					ATT_OP_HANDLE_NOTIFY,
 					r->value_handle,
-					report_value_cb, r, NULL);
+					report_value_cb, r,
+					report_notify_destroy);
+		if (!r->notifyid)
+			error("Unable to register report notification: "
+				"handle 0x%04x", r->value_handle);
 	}
 
 	return true;
diff --git a/src/device.c b/src/device.c
index 995d39f2ccee..28b93eb9ac38 100644
--- a/src/device.c
+++ b/src/device.c
@@ -5152,6 +5152,7 @@ static void gatt_client_init(struct btd_device *device)
 	}
 
 	bt_gatt_client_set_debug(device->client, gatt_debug, NULL, NULL);
+	g_attrib_attach_client(device->attrib, device->client);
 
 	/*
 	 * Notify notify existing service about the new connection so they can
-- 
2.37.3




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