[PATCH 2/2] xfs: cancel failed transaction in xfs_fs_commit_blocks()

[Eric Sandeen <sandeen@xxxxxxxxxxx>]

If xfs_trans_reserve fails we don't cancel the transaction,
and we'll leak the allocated transaction pointer.

Spotted by Coverity.

Signed-off-by: Eric Sandeen <ssandeen@xxxxxxxxxx>
---

diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index 4b33ef1..365dd57 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -300,8 +300,10 @@ xfs_fs_commit_blocks(
 
        tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
        error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0);
-       if (error)
+       if (error) {
+               xfs_trans_cancel(tp, 0);
                goto out_drop_iolock;
+       }
 
        xfs_ilock(ip, XFS_ILOCK_EXCL);
        xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);