• Bart Van Assche's avatar
    scsi: qla2xxx: Fix a NULL pointer dereference in an error path · 17c5f65d
    Bart Van Assche authored
    This patch fixes the following Coverity complaint:
    
    FORWARD_NULL
    
    qla_init.c: 5275 in qla2x00_configure_local_loop()
    5269
    5270     		if (fcport->scan_state == QLA_FCPORT_FOUND)
    5271     			qla24xx_fcport_handle_login(vha, fcport);
    5272     	}
    5273
    5274     cleanup_allocation:
    >>>     CID 353340:    (FORWARD_NULL)
    >>>     Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it.
    5275     	qla2x00_free_fcport(new_fcport);
    5276
    5277     	if (rval != QLA_SUCCESS) {
    5278     		ql_dbg(ql_dbg_disc, vha, 0x2098,
    5279     		    "Configure local loop error exit: rval=%x.\n", rval);
    5280     	}
    qla_init.c: 5275 in qla2x00_configure_local_loop()
    5269
    5270     		if (fcport->scan_state == QLA_FCPORT_FOUND)
    5271     			qla24xx_fcport_handle_login(vha, fcport);
    5272     	}
    5273
    5274     cleanup_allocation:
    >>>     CID 353340:    (FORWARD_NULL)
    >>>     Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it.
    5275     	qla2x00_free_fcport(new_fcport);
    5276
    5277     	if (rval != QLA_SUCCESS) {
    5278     		ql_dbg(ql_dbg_disc, vha, 0x2098,
    5279     		    "Configure local loop error exit: rval=%x.\n", rval);
    5280     	}
    
    Fixes: 3dae2205 ("scsi: qla2xxx: Use common routine to free fcport struct")
    Cc: Himanshu Madhani <hmadhani@marvell.com>
    Cc: Quinn Tran <qutran@marvell.com>
    Cc: Martin Wilck <mwilck@suse.com>
    Cc: Daniel Wagner <dwagner@suse.de>
    Cc: Roman Bolshakov <r.bolshakov@yadro.com>
    Link: https://lore.kernel.org/r/20200118042056.32232-1-bvanassche@acm.orgSigned-off-by: default avatarBart Van Assche <bvanassche@acm.org>
    Reviewed-by: default avatarEwan D. Milne <emilne@redhat.com>
    Reviewed-by: default avatarDaniel Wagner <dwagner@suse.de>
    Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
    17c5f65d
qla_init.c 236 KB