From 8810386f6bd55cf3287a1219901c2993b3bac959 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Sun, 21 Nov 2021 22:34:26 -0500
Subject: [PATCH] bcachefs: Fix an i_sectors accounting bug

We weren't checking for errors before calling i_sectors_acct()

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---
 fs/bcachefs/fs-io.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/bcachefs/fs-io.c b/fs/bcachefs/fs-io.c
index ac013bb99a43..dff6d7547212 100644
--- a/fs/bcachefs/fs-io.c
+++ b/fs/bcachefs/fs-io.c
@@ -2806,6 +2806,8 @@ static int __bchfs_fallocate(struct bch_inode_info *inode, int mode,
 					 &reservation.k_i,
 				&disk_res, NULL,
 				0, &i_sectors_delta, true);
+		if (ret)
+			goto bkey_err;
 		i_sectors_acct(c, inode, &quota_res, i_sectors_delta);
 bkey_err:
 		bch2_quota_reservation_put(c, inode, &quota_res);