diff options
| author | dufault <dufault@FreeBSD.org> | 1995-03-03 21:38:43 +0000 |
|---|---|---|
| committer | dufault <dufault@FreeBSD.org> | 1995-03-03 21:38:43 +0000 |
| commit | 78929da63cab7ac0a2bcc42e1c8e402e501f9434 (patch) | |
| tree | 26317940b10dfc9696fcc2c3619998bb43de6880 /sys/scsi | |
| parent | 6ab7eefa564b1c625ab6f847fb27d5c8e083d416 (diff) | |
| download | FreeBSD-src-78929da63cab7ac0a2bcc42e1c8e402e501f9434.zip FreeBSD-src-78929da63cab7ac0a2bcc42e1c8e402e501f9434.tar.gz | |
Make sure there is a device before opening. Fixes NULL access
when opening unattached devices.
Diffstat (limited to 'sys/scsi')
| -rw-r--r-- | sys/scsi/scsi_driver.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/scsi/scsi_driver.c b/sys/scsi/scsi_driver.c index 8155c70..dab2d5b 100644 --- a/sys/scsi/scsi_driver.c +++ b/sys/scsi/scsi_driver.c @@ -35,7 +35,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: scsi_ioctl.c,v 1.10 1995/01/19 12:41:36 dufault Exp $ + * $Id: scsi_driver.c,v 1.1 1995/03/01 22:24:41 dufault Exp $ * */ #include <sys/types.h> @@ -89,6 +89,9 @@ scsi_open(dev_t dev, int flags, struct scsi_device *device) u_int32 unit; struct scsi_link *sc_link; + if (device == 0) + return ENXIO; + unit = GETUNIT(device, dev); sc_link = SCSI_LINK(device, unit); |
