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Bluetooth: GATT: Fix calculation of max data allowed in write req

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This patch fixes the calculation of maximum data that can be sent
by Write Request.
Maximum data is MTU reduced by size of handle and command opcode.

Change-Id: I2abeef9adffd65e24a2489ad084bfa3b810e4acf
Signed-off-by: Mariusz Skamra <mariusz.skamra@tieto.com>
This commit is contained in:
Mariusz Skamra 2015-12-02 15:07:35 +01:00 • committed by Anas Nashif
commit 65e917c9ab
1 changed files with 1 additions and 1 deletions
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2
net/bluetooth/gatt.c
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@ -1349,7 +1349,7 @@ int bt_gatt_write(struct bt_conn *conn, uint16_t handle, uint16_t offset,
}
/* Use Prepare Write if offset is set or Long Write is required */
if (offset || length > bt_att_get_mtu(conn) - 1) {
if (offset || length > (bt_att_get_mtu(conn) - sizeof(*req) - 1)) {
return gatt_prepare_write(conn, handle, offset, data, length,
func);
}