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Returning NULL will lead to a NULL dereference. Fixes: 6b8d4a6a0314 ("Bluetooth: 6LoWPAN: Use connected oriented channel in= stead of fixed one") Signed-off-by: Dan Carpenter --- net/bluetooth/6lowpan.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 50cfec8ccac4..3c29778171c5 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -825,11 +825,16 @@ static struct sk_buff *chan_alloc_skb_cb(struct l2cap= _chan *chan, unsigned long hdr_len, unsigned long len, int nb) { + struct sk_buff *skb; + /* Note that we must allocate using GFP_ATOMIC here as * this function is called originally from netdev hard xmit * function in atomic context. */ - return bt_skb_alloc(hdr_len + len, GFP_ATOMIC); + skb =3D bt_skb_alloc(hdr_len + len, GFP_ATOMIC); + if (!skb) + return ERR_PTR(-ENOMEM); + return skb; } =20 static void chan_suspend_cb(struct l2cap_chan *chan) --=20 2.47.2