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Removed dummy routines sscstrategy(), sscread(), sscwrite() and

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sscselect().  Use the standard dummies nostrategy(), noread(),
nowrite() and noselect() instead.

sscread() and sscwrite() returned bogus errnos.  It isn't possible
to return an error from a select routine so noselect() is just as
bogus as sscselect() (it's equivalent to nullselect()).
This commit is contained in:
Bruce Evans 1995-12-05 19:36:47 +00:00
parent c66c72d1b4
commit 7c3bc2bfe9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=12637
2 changed files with 9 additions and 17 deletions
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10
sys/i386/i386/conf.c
View File

@ -42,7 +42,7 @@
* SUCH DAMAGE.
*
* from: @(#)conf.c 5.8 (Berkeley) 5/12/91
* $Id: conf.c,v 1.107 1995/11/29 12:38:29 julian Exp $
* $Id: conf.c,v 1.108 1995/11/29 14:39:22 julian Exp $
*/
#include <sys/param.h>
@ -470,10 +470,6 @@ int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]);
#define sscopen nxopen
#define sscclose nxclose
#define sscioctl nxioctl
#define sscread nxread
#define sscwrite nxwrite
#define sscselect nxselect
#define sscstrategy nxstrategy
#endif
#include "cx.h"
@ -813,9 +809,9 @@ struct cdevsw cdevsw[] =
{ cyopen, cyclose, cyread, cywrite, /*48*/
cyioctl, cystop, nxreset, cydevtotty,/*cyclades*/
ttselect, nxmmap, NULL },
{ sscopen, sscclose, sscread, sscwrite, /*49*/
{ sscopen, sscclose, noread, nowrite, /*49*/
sscioctl, nostop, nullreset, nodevtotty,/* scsi super */
sscselect, nxmmap, sscstrategy },
noselect, nommap, nostrategy },
{ crdopen, crdclose, crdread, crdwrite, /*50*/
crdioctl, nostop, nullreset, nodevtotty,/* pcmcia */
crdselect, nommap, NULL },

16
sys/scsi/ssc.c
View File

@ -49,7 +49,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*End copyright
* $Id: ssc.c,v 1.5 1995/11/29 10:49:03 julian Exp $
* $Id: ssc.c,v 1.6 1995/11/29 14:41:03 julian Exp $
*/
#include <sys/types.h>
@ -116,21 +116,17 @@ int sscioctl(dev_t dev, int cmd, caddr_t data, int fflag, struct proc *p)
return ENXIO;
}
/* I've elected not to support any of these other entries. There
* really is no good reason other than I'm not sure how you would use
* them.
/*
* I've elected not to support any other entries. There really is no
* good reason other than I'm not sure how you would use them.
*/
void sscstrategy(struct buf *bp) { }
int sscread(dev_t dev, struct uio *uio, int ioflag) { return ENXIO; }
int sscwrite(dev_t dev, struct uio *uio, int ioflag) { return ENXIO; }
int sscselect(dev_t dev, int which, struct proc *p) { return ENXIO; }
#ifdef JREMOD
struct cdevsw ssc_cdevsw =
{ sscopen, sscclose, sscread, sscwrite, /*49*/
{ sscopen, sscclose, noread, nowrite, /*49*/
sscioctl, nostop, nullreset, nodevtotty,/* scsi super */
sscselect, nxmmap, sscstrategy };
noselect, nommap, nostrategy };
static ssc_devsw_installed = 0;