[PATCH 5.11 172/329] ceph: fix inode leak on getattr error in __fh_to_dentry

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From: Jeff Layton <jlayton@xxxxxxxxxx>

[ Upstream commit 1775c7ddacfcea29051c67409087578f8f4d751b ]

Fixes: 878dabb64117 ("ceph: don't return -ESTALE if there's still an open file")
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/ceph/export.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index e088843a7734..baa6368bece5 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -178,8 +178,10 @@ static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
 		return ERR_CAST(inode);
 	/* We need LINK caps to reliably check i_nlink */
 	err = ceph_do_getattr(inode, CEPH_CAP_LINK_SHARED, false);
-	if (err)
+	if (err) {
+		iput(inode);
 		return ERR_PTR(err);
+	}
 	/* -ESTALE if inode as been unlinked and no file is open */
 	if ((inode->i_nlink == 0) && (atomic_read(&inode->i_count) == 1)) {
 		iput(inode);
-- 
2.30.2






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