[PATCH 5.7 101/477] xfs: Add the missed xfs_perag_put() for xfs_ifree_cluster()

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From: Chuhong Yuan <hslester96@xxxxxxxxx>

[ 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@xxxxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/xfs/xfs_inode.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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
-- 
2.25.1






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