Re: [PATCH] ceph: fix inode leak on getattr error in __fh_to_dentry

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On 2021/3/26 23:40, Jeff Layton wrote:
Cc: Luis Henriques <lhenriques@xxxxxxx>
Fixes: 878dabb64117 (ceph: don't return -ESTALE if there's still an open file)
Signed-off-by: Jeff Layton <jlayton@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 f22156ee7306..17d8c8f4ec89 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);

Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>




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