qla2300 is a driver for the SAN fibre card.
Today I have to renew the driver from 6.06 --> 7.03

so I type the follow command to try remove the module "qla2300":
rmmod qla2300

and the response is:
qla2300: Device or resource busy

Do it mean that the SAN device is using by the others?
How can I stop it and try the new driver?

Thanks ~Please give me some hints or guide ^_^

P.S. this is part of my 'lsmod command output'

qla2300 283360 1
qla2300_conf 300984 0
sd_mod 13408 32
scsi_mod 103620 7 [st sr_mod sg qla2300 megaraid aic7xxx sd_mod]

Is it related?