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Bluetooth: Fix PSM value for L2CAP connectionless data packets

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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>
This commit is contained in:
Marcel Holtmann 2013-10-12 06:01:26 -07:00 committed by Johan Hedberg
parent 4ca048e3a3
commit 43b1b8dfb4
1 changed files with 3 additions and 2 deletions
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5
net/bluetooth/l2cap_core.c
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@ -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)) {