Hello Hannes Reinecke,
The patch ee35624e1e4e: "scsi: libfc: Add lockdep annotations" from
Jul 4, 2018, leads to the following static checker warning:
drivers/scsi/libfc/fc_rport.c:1838 fc_rport_recv_plogi_req()
error: uninitialized symbol 'rdata'.
drivers/scsi/libfc/fc_rport.c
1828 static void fc_rport_recv_plogi_req(struct fc_lport *lport,
1829 struct fc_frame *rx_fp)
1830 {
1831 struct fc_disc *disc;
1832 struct fc_rport_priv *rdata;
^^^^^
1833 struct fc_frame *fp = rx_fp;
1834 struct fc_els_flogi *pl;
1835 struct fc_seq_els_data rjt_data;
1836 u32 sid;
1837
1838 lockdep_assert_held(&rdata->rp_mutex);
^^^^^^^^^^^^^^^
This isn't initialized.
1839
1840 sid = fc_frame_sid(fp);
1841
1842 FC_RPORT_ID_DBG(lport, sid, "Received PLOGI request\n");
1843
1844 pl = fc_frame_payload_get(fp, sizeof(*pl));
1845 if (!pl) {
1846 FC_RPORT_ID_DBG(lport, sid, "Received PLOGI too short\n");
1847 rjt_data.reason = ELS_RJT_PROT;
1848 rjt_data.explan = ELS_EXPL_INV_LEN;
1849 goto reject;
1850 }
1851
1852 disc = &lport->disc;
1853 mutex_lock(&disc->disc_mutex);
1854 rdata = fc_rport_create(lport, sid);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1855 if (!rdata) {
^^^^^^
1856 mutex_unlock(&disc->disc_mutex);
1857 rjt_data.reason = ELS_RJT_UNAB;
1858 rjt_data.explan = ELS_EXPL_INSUF_RES;
1859 goto reject;
1860 }
regards,
dan carpenter
