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Diffstat (limited to 'fs/overlayfs/inode.c')
-rw-r--r--fs/overlayfs/inode.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 4060ffde8722..38a0b8b9f8b9 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -137,17 +137,21 @@ struct ovl_link_data {
void *cookie;
};
-static const char *ovl_follow_link(struct dentry *dentry, void **cookie)
+static const char *ovl_get_link(struct dentry *dentry,
+ struct inode *inode, void **cookie)
{
struct dentry *realdentry;
struct inode *realinode;
struct ovl_link_data *data = NULL;
const char *ret;
+ if (!dentry)
+ return ERR_PTR(-ECHILD);
+
realdentry = ovl_dentry_real(dentry);
realinode = realdentry->d_inode;
- if (WARN_ON(!realinode->i_op->follow_link))
+ if (WARN_ON(!realinode->i_op->get_link))
return ERR_PTR(-EPERM);
if (realinode->i_op->put_link) {
@@ -157,7 +161,7 @@ static const char *ovl_follow_link(struct dentry *dentry, void **cookie)
data->realdentry = realdentry;
}
- ret = realinode->i_op->follow_link(realdentry, cookie);
+ ret = realinode->i_op->get_link(realdentry, realinode, cookie);
if (IS_ERR_OR_NULL(ret)) {
kfree(data);
return ret;
@@ -378,7 +382,7 @@ static const struct inode_operations ovl_file_inode_operations = {
static const struct inode_operations ovl_symlink_inode_operations = {
.setattr = ovl_setattr,
- .follow_link = ovl_follow_link,
+ .get_link = ovl_get_link,
.put_link = ovl_put_link,
.readlink = ovl_readlink,
.getattr = ovl_getattr,