when i use ddi_prop_op to give WWN property of device , a coredump happens.
There maybe some problems exist in my code.My code prototype comes from
"socal.c". The corresording source code and my code is following:
1) code in socal.c
/* Get out Node wwn and calculate port wwns */
rval = ddi_prop_op(DDI_DEV_T_ANY, dip,
PROP_LEN_AND_VAL_ALLOC, DDI_PROP_DONTPASS |
DDI_PROP_CANSLEEP, "wwn", (caddr_t)&wwn, &i);
2) my code. dip is the dev_info node of scsi disk in sdprobe(dev_info_t *dip)
rval = ddi_prop_op(DDI_DEV_T_ANY, dip,
PROP_LEN_AND_VAL_ALLOC, DDI_PROP_DONTPASS |
DDI_PROP_CANSLEEP, "node-wwn", (caddr_t)&wwn, &i);
cmn_err(CE_NOTE, "The node-WWN is: %s", (wwn == NULL)?"(null)":wwn);
Is my way getting node-wwn correctly?? if wrong, how to get the WWN, tell me
please!
thanks all!
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