From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 14 Oct 2022 12:36:53 +0300
Subject: ceph: fix a NULL vs IS_ERR() check when calling ceph_lookup_inode()
Git-commit: f86a48667b91202d502d753c707e8576a6fe265b
Patch-mainline: v6.1-rc6
References: jsc#SES-1880
The ceph_lookup_inode() function returns error pointers. It never
returns NULL.
Fixes: aa87052dd965 ("ceph: fix incorrectly showing the .snap size for stat")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.de>
---
fs/ceph/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 4af5e55abc15..bad9eeb6a1a5 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2492,7 +2492,7 @@ int ceph_getattr(struct user_namespace *mnt_userns, const struct path *path,
struct inode *parent;
parent = ceph_lookup_inode(sb, ceph_ino(inode));
- if (!parent)
+ if (IS_ERR(parent))
return PTR_ERR(parent);
pci = ceph_inode(parent);