From ef13ecbc134d7e0ca4ab4834d08bd20885b53c62 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 30 Aug 2017 17:04:56 +0300
Subject: kernfs: checking for IS_ERR() instead of NULL

The kernfs_get_inode() returns NULL on error, it never returns error
pointers.

Fixes: aa8188253474 ("kernfs: add exportfs operations")
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/kernfs/mount.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'fs/kernfs')

diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index 7c452f4d83e9..95a7c88baed9 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -99,8 +99,8 @@ static struct inode *kernfs_fh_get_inode(struct super_block *sb,
 		return ERR_PTR(-ESTALE);
 	inode = kernfs_get_inode(sb, kn);
 	kernfs_put(kn);
-	if (IS_ERR(inode))
-		return ERR_CAST(inode);
+	if (!inode)
+		return ERR_PTR(-ESTALE);
 
 	if (generation && inode->i_generation != generation) {
 		/* we didn't find the right inode.. */
-- 
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