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-rw-r--r--sys/isofs/cd9660/cd9660_vfsops.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/isofs/cd9660/cd9660_vfsops.c b/sys/isofs/cd9660/cd9660_vfsops.c
index fb877ca1a412..69e3ebd0c748 100644
--- a/sys/isofs/cd9660/cd9660_vfsops.c
+++ b/sys/isofs/cd9660/cd9660_vfsops.c
@@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)cd9660_vfsops.c 8.18 (Berkeley) 5/22/95
- * $Id: cd9660_vfsops.c,v 1.43 1998/09/07 13:17:00 bde Exp $
+ * $Id: cd9660_vfsops.c,v 1.44 1998/09/14 19:56:39 sos Exp $
*/
#include <sys/param.h>
@@ -229,7 +229,8 @@ cd9660_mount(mp, path, data, ndp, p)
vrele(devvp);
return ENOTBLK;
}
- if (major(devvp->v_rdev) >= nblkdev) {
+ if (major(devvp->v_rdev) >= nblkdev ||
+ bdevsw[major(devvp->v_rdev)] == NULL) {
vrele(devvp);
return ENXIO;
}