[PATCH 1/6] __detach_mounts(): lookup_mountpoint() can't return ERR_PTR() anymore

From: Al Viro
Date: Fri Jul 05 2019 - 20:22:45 EST


From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

... not since 1e9c75fb9c47 ("mnt: fix __detach_mounts infinite loop")

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 6fbc9126367a..746e3fd1f430 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1625,7 +1625,7 @@ void __detach_mounts(struct dentry *dentry)
namespace_lock();
lock_mount_hash();
mp = lookup_mountpoint(dentry);
- if (IS_ERR_OR_NULL(mp))
+ if (!mp)
goto out_unlock;

event++;
--
2.11.0