Bluetooth: Fix PSM value for L2CAP connectionless data packets

The put_unaligned() for setting the PSM is missing the (__le16 *)
cast. Without this, the PSM information transmitted over the air
are bogus.

In addition, print the used PSM value in the debug message so this
becomes easier to debug in the future.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index a7d10c3596e38e73770ec4ee2d7d5dbebb711869..ab976a1c6466230b2c388d98385b5f755f74da94 100644 (file)
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2283,7 +2283,8 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
        int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE;
        struct l2cap_hdr *lh;
 
-       BT_DBG("chan %p len %zu priority %u", chan, len, priority);
+       BT_DBG("chan %p psm 0x%2.2x len %zu priority %u", chan,
+              __le16_to_cpu(chan->psm), len, priority);
 
        count = min_t(unsigned int, (conn->mtu - hlen), len);
 
@@ -2298,7 +2299,7 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
        lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
        lh->cid = cpu_to_le16(chan->dcid);
        lh->len = cpu_to_le16(len + L2CAP_PSMLEN_SIZE);
-       put_unaligned(chan->psm, skb_put(skb, L2CAP_PSMLEN_SIZE));
+       put_unaligned(chan->psm, (__le16 *) skb_put(skb, L2CAP_PSMLEN_SIZE));
 
        err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
        if (unlikely(err < 0)) {