diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 908e974..a4aaaee 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -462,8 +462,8 @@
 			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