procfs: don't allow to use proc_create, create_proc_entry, etc. for directories

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 908e97457319..a4aaaeee3342 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -462,8 +462,8 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
                         inode->i_size = de->size;
                 if (de->nlink)
                         set_nlink(inode, de->nlink);
-                if (de->proc_iops)
-                        inode->i_op = de->proc_iops;
+                WARN_ON(!de->proc_iops);
+                inode->i_op = de->proc_iops;
                 if (de->proc_fops) {
                         if (S_ISREG(inode->i_mode)) {
 #ifdef CONFIG_COMPAT