From: Chuhong Yuan <hslester96@gmail.com>
Date: Wed, 3 Jun 2020 16:27:28 +0000 (-0700)
Subject: xfs: Add the missed xfs_perag_put() for xfs_ifree_cluster()
X-Git-Tag: v5.7.6~374
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=5e75707d5f574c66c6b30b6ab406a5ab9863f48c;p=users%2Fdwmw2%2Flinux.git

xfs: Add the missed xfs_perag_put() for xfs_ifree_cluster()

[ Upstream commit 8cc0072469723459dc6bd7beff81b2b3149f4cf4 ]

xfs_ifree_cluster() calls xfs_perag_get() at the beginning, but forgets to
call xfs_perag_put() in one failed path.
Add the missed function call to fix it.

Fixes: ce92464c180b ("xfs: make xfs_trans_get_buf return an error code")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index d1772786af29d..8845faa8161a9 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2639,8 +2639,10 @@ xfs_ifree_cluster(
 		error = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
 				mp->m_bsize * igeo->blocks_per_cluster,
 				XBF_UNMAPPED, &bp);
-		if (error)
+		if (error) {
+			xfs_perag_put(pag);
 			return error;
+		}
 
 		/*
 		 * This buffer may not have been correctly initialised as we