From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 9 Jul 2011 00:56:55 +0000 (-0400)
Subject: fix exofs ->get_parent()
X-Git-Tag: firefly_0821_release~3680^2~5035^2~6
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a803b8067e317832d6a251c5b0486e36a4f81922;p=firefly-linux-kernel-4.4.55.git

fix exofs ->get_parent()

NULL is not a possible return value for that method, TYVM...

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

diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 06065bd37fc3..c57beddcc217 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -913,7 +913,7 @@ struct dentry *exofs_get_parent(struct dentry *child)
 	unsigned long ino = exofs_parent_ino(child);
 
 	if (!ino)
-		return NULL;
+		return ERR_PTR(-ESTALE);
 
 	return d_obtain_alias(exofs_iget(child->d_inode->i_sb, ino));
 }