linux-kernel - [PATCH 4.14 09/50] btrfs: Move free_pages_out label in inline extent handling branch in compress_file

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 24 Aug 2020 10:31:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Nikolay Borisov <nborisov@...e.com>,
        David Sterba <dsterba@...e.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 09/50] btrfs: Move free_pages_out label in inline extent handling branch in compress_file_range

From: Nikolay Borisov <nborisov@...e.com>

[ Upstream commit cecc8d9038d164eda61fbcd72520975a554ea63e ]

This label is only executed if compress_file_range fails to create an
inline extent. So move its code in the semantically related inline
extent handling branch. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@...e.com>
Reviewed-by: David Sterba <dsterba@...e.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/btrfs/inode.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 57908ee964a20..dc520749f51db 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -629,7 +629,14 @@ cont:
 				btrfs_free_reserved_data_space_noquota(inode,
 							       start,
 							       end - start + 1);
-			goto free_pages_out;
+
+			for (i = 0; i < nr_pages; i++) {
+				WARN_ON(pages[i]->mapping);
+				put_page(pages[i]);
+			}
+			kfree(pages);
+
+			return;
 		}
 	}
 
@@ -708,13 +715,6 @@ cleanup_and_bail_uncompressed:
 	*num_added += 1;
 
 	return;
-
-free_pages_out:
-	for (i = 0; i < nr_pages; i++) {
-		WARN_ON(pages[i]->mapping);
-		put_page(pages[i]);
-	}
-	kfree(pages);
 }
 
 static void free_async_extent_pages(struct async_extent *async_extent)
-- 
2.25.1