linux-kernel - [PATCH 4.14 139/222] ext4: propagate error from dquot_initialize() in EXT4_IOC

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Date:   Sun, 11 Nov 2018 14:23:56 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Wang Shilong <wshilong@....com>,
        Theodore Tso <tytso@....edu>, stable@...nel.org
Subject: [PATCH 4.14 139/222] ext4: propagate error from dquot_initialize() in EXT4_IOC_FSSETXATTR

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wang Shilong <wshilong@....com>

commit 182a79e0c17147d2c2d3990a9a7b6b58a1561c7a upstream.

We return most failure of dquota_initialize() except
inode evict, this could make a bit sense, for example
we allow file removal even quota files are broken?

But it dosen't make sense to allow setting project
if quota files etc are broken.

Signed-off-by: Wang Shilong <wshilong@....com>
Signed-off-by: Theodore Ts'o <tytso@....edu>
Cc: stable@...nel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/ext4/ioctl.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -364,7 +364,9 @@ static int ext4_ioctl_setproject(struct
 		brelse(iloc.bh);
 	}
 
-	dquot_initialize(inode);
+	err = dquot_initialize(inode);
+	if (err)
+		return err;
 
 	handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
 		EXT4_QUOTA_INIT_BLOCKS(sb) +