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authorAl Viro <viro@zeniv.linux.org.uk>2016-06-24 23:49:03 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-06-24 23:49:03 -0400
commitb42b90d177d0c7f46f9c888c10c7900578ae7e09 (patch)
tree106cad0e70fd1a19db2019202dad90289e420ac2 /fs
parentebaaa80e8f20ff2cbbccd6823f73a99565487502 (diff)
downloadlinux-b42b90d177d0c7f46f9c888c10c7900578ae7e09.tar.gz
ceph: fix d_obtain_alias() misuses
on failure d_obtain_alias() will have done iput() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/export.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 6e72c98162d5..1780218a48f0 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -95,10 +95,8 @@ static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
}
dentry = d_obtain_alias(inode);
- if (IS_ERR(dentry)) {
- iput(inode);
+ if (IS_ERR(dentry))
return dentry;
- }
err = ceph_init_dentry(dentry);
if (err < 0) {
dput(dentry);
@@ -167,10 +165,8 @@ static struct dentry *__get_parent(struct super_block *sb,
return ERR_PTR(-ENOENT);
dentry = d_obtain_alias(inode);
- if (IS_ERR(dentry)) {
- iput(inode);
+ if (IS_ERR(dentry))
return dentry;
- }
err = ceph_init_dentry(dentry);
if (err < 0) {
dput(dentry);
@@ -210,7 +206,7 @@ static struct dentry *ceph_fh_to_parent(struct super_block *sb,
dout("fh_to_parent %llx\n", cfh->parent_ino);
dentry = __get_parent(sb, NULL, cfh->ino);
- if (IS_ERR(dentry) && PTR_ERR(dentry) == -ENOENT)
+ if (unlikely(dentry == ERR_PTR(-ENOENT)))
dentry = __fh_to_dentry(sb, cfh->parent_ino);
return dentry;
}