Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression
The patch d0be8347: "Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put" from Jul 21, 2022, leads to the following Smatch static checker warning: net/bluetooth/l2cap_core.c:1977 l2cap_global_chan_by_psm() error: we previously assumed 'c' could be null (see line 1996) Fixes: d0be8347 ("Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put") Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
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