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authorphk <phk@FreeBSD.org>2005-03-31 12:19:44 +0000
committerphk <phk@FreeBSD.org>2005-03-31 12:19:44 +0000
commit7af1e31761f34e698cdf576e46c042b327f5a612 (patch)
tree3f79498c2fd283a3ff468ae4f9116e9f395f4fa7 /sys/fs/devfs
parentbf21be6c028410767b09b4755acb72b254e317d8 (diff)
downloadFreeBSD-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/devfs')
-rw-r--r--sys/fs/devfs/devfs_vnops.c1
1 files changed, 1 insertions, 0 deletions
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;
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