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Don't remove the SI_CHEAPCLONE for unsupported minors

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This commit is contained in:
Brian Somers 2001-06-18 09:22:30 +00:00
parent 2deed49982
commit 21ff14e0f9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=78405
1 changed files with 2 additions and 1 deletions
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3
sys/kern/tty_pty.c
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@ -143,12 +143,13 @@ ptyinit(dev_t devc)
struct pt_ioctl *pt;
int n;
devc->si_flags &= ~SI_CHEAPCLONE;
n = minor(devc);
/* For now we only map the lower 8 bits of the minor */
if (n & ~0xff)
return (NODEV);
devc->si_flags &= ~SI_CHEAPCLONE;
pt = malloc(sizeof(*pt), M_PTY, M_WAITOK | M_ZERO);
pt->devs = devs = make_dev(&pts_cdevsw, n,
UID_ROOT, GID_WHEEL, 0666, "tty%c%r", names[n / 32], n % 32);