diff options
| author | phk <phk@FreeBSD.org> | 2005-03-31 12:19:44 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 2005-03-31 12:19:44 +0000 |
| commit | 7af1e31761f34e698cdf576e46c042b327f5a612 (patch) | |
| tree | 3f79498c2fd283a3ff468ae4f9116e9f395f4fa7 /sys/fs | |
| parent | bf21be6c028410767b09b4755acb72b254e317d8 (diff) | |
| download | FreeBSD-src-7af1e31761f34e698cdf576e46c042b327f5a612.zip FreeBSD-src-7af1e31761f34e698cdf576e46c042b327f5a612.tar.gz | |
Explicitly hold a reference to the cdev we have just cloned. This
closes the race where the cdev was reclaimed before it ever made it
back to devfs lookup.
Diffstat (limited to 'sys/fs')
| -rw-r--r-- | sys/fs/coda/coda_fbsd.c | 1 | ||||
| -rw-r--r-- | sys/fs/devfs/devfs_vnops.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/sys/fs/coda/coda_fbsd.c b/sys/fs/coda/coda_fbsd.c index d68b63f..ac6ad48 100644 --- a/sys/fs/coda/coda_fbsd.c +++ b/sys/fs/coda/coda_fbsd.c @@ -120,6 +120,7 @@ static void coda_fbsd_clone(arg, name, namelen, dev) return; *dev = make_dev(&codadevsw,unit2minor(u),UID_ROOT,GID_WHEEL,0600,"cfs%d",u); + dev_ref(*dev); mnt = malloc(sizeof(struct coda_mntinfo), M_CODA, M_WAITOK|M_ZERO); LIST_INSERT_HEAD(&coda_mnttbl, mnt, mi_list); } diff --git a/sys/fs/devfs/devfs_vnops.c b/sys/fs/devfs/devfs_vnops.c index 8c100ef..90139c2 100644 --- a/sys/fs/devfs/devfs_vnops.c +++ b/sys/fs/devfs/devfs_vnops.c @@ -655,6 +655,7 @@ devfs_lookupx(ap) devfs_populate(dmp); dde = devfs_itode(dmp, cdev->si_inode); + dev_rel(cdev); if (dde == NULL || *dde == NULL || *dde == DE_DELETED) goto notfound; |
