Module Name:	src
Committed By:	kenh
Date:		Thu Nov 19 22:50:21 UTC 1998

Modified Files:
	src/sys/dev/ic: wdc.c
Log Message:
Sigh, my bad.  Check for chp->wdc being NULL before trying to deference it.
(I didn't realize the ISA wdc front-end doesn't fill in chp->wdc).