commit approval

[Colin Percival]

Dear mentor and scsi maintainers,
   Is the following commit ok?

Colin Percival

Log:
Check that periph is non-NULL before dereferencing it.

Reported by:	"Ted Unangst" <tedu at coverity.com>

Index: src/sys/cam/scsi/scsi_da.c
===================================================================
RCS file: /home/ncvs/src/sys/cam/scsi/scsi_da.c,v
retrieving revision 1.163
diff -u -r1.163 scsi_da.c
--- src/sys/cam/scsi/scsi_da.c	18 Feb 2004 21:36:50 -0000	1.163
+++ src/sys/cam/scsi/scsi_da.c	20 Feb 2004 14:59:52 -0000
@@ -464,11 +464,11 @@

  	s = splsoftcam();
  	periph = (struct cam_periph *)dp->d_drv1;
-	unit = periph->unit_number;
  	if (periph == NULL) {
  		splx(s);
  		return (ENXIO);	
  	}
+	unit = periph->unit_number;

  	softc = (struct da_softc *)periph->softc;