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Bluetooth: GATT: Fix calling read handler twice 

If length is already 0 there is no point in calling the handler again
as that already mark the end of the operation.

Change-Id: I212a6d8bdd9aa3d9886099bb7ed3f9d3831bcf1a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Luiz Augusto von Dentz 2016-10-31 13:20:47 +02:00 committed by Johan Hedberg
parent 07c8be1791
commit 237455f77f
1 changed files with 9 additions and 0 deletions
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9
net/bluetooth/gatt.c
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@ -1355,6 +1355,11 @@ static void att_read_rsp(struct bt_conn *conn, uint8_t err, const void *pdu,
return;
}
/* Stop if no data left */
if (!length) {
return;
}
/*
* Core Spec 4.2, Vol. 3, Part G, 4.8.1
* If the Characteristic Value is greater than (ATT_MTU - 1) octets
@ -1410,6 +1415,10 @@ static void att_read_multiple_rsp(struct bt_conn *conn, uint8_t err,
params->func(conn, 0, params, pdu, length);
if (!length) {
return;
}
/* mark read as complete since read multiple is single response */
params->func(conn, 0, params, NULL, 0);
}