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Changed cncheckc() interface so that it is 8-bit clean - return -1

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instead of 0 if there is no input.
This commit is contained in:
Bruce Evans 1996-09-14 04:25:32 +00:00
parent eaa86f9d7f
commit 40b55a34ae
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=18287
2 changed files with 4 additions and 4 deletions
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4
sys/i386/i386/cons.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* from: @(#)cons.c 7.2 (Berkeley) 5/9/91
* $Id: cons.c,v 1.45 1996/03/28 15:03:41 bde Exp $
* $Id: cons.c,v 1.46 1996/05/01 03:32:46 bde Exp $
*/
#include <sys/param.h>
@ -297,7 +297,7 @@ int
cncheckc()
{
if (cn_tab == NULL)
return (0);
return (-1);
return ((*cn_tab->cn_checkc)(cn_tab->cn_dev));
}

4
sys/kern/tty_cons.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* from: @(#)cons.c 7.2 (Berkeley) 5/9/91
* $Id: cons.c,v 1.45 1996/03/28 15:03:41 bde Exp $
* $Id: cons.c,v 1.46 1996/05/01 03:32:46 bde Exp $
*/
#include <sys/param.h>
@ -297,7 +297,7 @@ int
cncheckc()
{
if (cn_tab == NULL)
return (0);
return (-1);
return ((*cn_tab->cn_checkc)(cn_tab->cn_dev));
}