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After a successfull poll of the cloning functions, match on the

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returned dev_t rather than the original name.

This allows cloning from one name to another which is useful for
/dev/tty and later for the pty's.
This commit is contained in:
Poul-Henning Kamp 2001-05-14 08:20:46 +00:00
parent 510937db3c
commit f73cbde4cf
1 changed files with 6 additions and 14 deletions
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20
sys/fs/devfs/devfs_vnops.c
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@ -211,7 +211,7 @@ devfs_lookupx(ap)
struct proc *p;
struct devfs_dirent *de, *dd;
struct devfs_mount *dmp;
dev_t cdev;
dev_t cdev, *cpdev;
int error, cloned, i, flags, nameiop;
char specname[SPECNAMELEN + 1], *pname;
@ -308,28 +308,20 @@ devfs_lookupx(ap)
de = de->de_dir;
}
#if 0
printf("Finished specname: %d \"%s\"\n", i, specname + i);
#endif
cdev = NODEV;
EVENTHANDLER_INVOKE(dev_clone, specname + i,
strlen(specname + i), &cdev);
#if 0
printf("cloned %s -> %p %s\n", specname + i, cdev,
cdev == NODEV ? "NODEV" : cdev->si_name);
#endif
if (cdev == NODEV)
goto notfound;
devfs_populate(dmp);
dd = dvp->v_data;
TAILQ_FOREACH(de, &dd->de_dlist, de_list) {
if (cnp->cn_namelen != de->de_dirent->d_namlen)
continue;
if (bcmp(cnp->cn_nameptr, de->de_dirent->d_name,
de->de_dirent->d_namlen) != 0)
continue;
goto found;
cpdev = devfs_itod(de->de_inode);
if (cpdev != NULL && cdev == *cpdev)
goto found;
continue;
}
notfound: