Hi Luiz, kernel test robot noticed the following build warnings: https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Luiz-Augusto-von-Dentz/Bluetooth-L2CAP-Fix-leaking-l2cap_conn-objects/20230914-034053 base: linus/master patch link: https://lore.kernel.org/r/20230913193839.3029428-1-luiz.dentz%40gmail.com patch subject: [PATCH] Bluetooth: L2CAP: Fix leaking l2cap_conn objects config: x86_64-randconfig-161-20230914 (https://download.01.org/0day-ci/archive/20230914/202309141910.lGRlJL61-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230914/202309141910.lGRlJL61-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202309141910.lGRlJL61-lkp@xxxxxxxxx/ smatch warnings: net/bluetooth/hci_conn.c:2725 hci_chan_del() warn: variable dereferenced before check 'conn' (see line 2723) vim +/conn +2725 net/bluetooth/hci_conn.c 9472007c62ecc8 Andrei Emeltchenko 2012-09-06 2720 void hci_chan_del(struct hci_chan *chan) 73d80deb7bdf01 Luiz Augusto von Dentz 2011-11-02 2721 { 73d80deb7bdf01 Luiz Augusto von Dentz 2011-11-02 2722 struct hci_conn *conn = chan->conn; 73d80deb7bdf01 Luiz Augusto von Dentz 2011-11-02 @2723 struct hci_dev *hdev = conn->hdev; ^^^^^^^^^^ Dereference 73d80deb7bdf01 Luiz Augusto von Dentz 2011-11-02 2724 6fc2f406e4158e Luiz Augusto von Dentz 2023-09-13 @2725 if (!conn) ^^^^^ Too late 6fc2f406e4158e Luiz Augusto von Dentz 2023-09-13 2726 return; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
