build/patch/u-boot/legacy/board_odroidc1/ext4fs-fix-invalid-extent-block-error.patch

45 lines
1.3 KiB
Diff

From b33e6fa8e4217bbfc41e6af266049f86b198156e Mon Sep 17 00:00:00 2001
From: Ionut Nicu <ioan.nicu.ext@nsn.com>
Date: Mon, 13 Jan 2014 12:00:08 +0100
Subject: [PATCH 2/2] ext4fs: fix "invalid extent block" error
For files where we actually have extent indexes following
an extent header (ext_block->eh_depth != 0), the do/while
loop from ext4fs_get_extent_block() does not select the
proper extent index structure.
For example, if we have:
ext_block->eh_depth = 1
ext_block->eh_entries = 1
fileblock = 0
index[0].ei_block = 0
the do/while loop will exit with i set to 0 and the
ext4fs_get_extent_block() function will return 0, even if
there was a valid extent index structure following the
header.
Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
Signed-off-by: Mathias Rulf <mathias.rulf@nsn.com>
---
fs/ext4/ext4_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index 16b58ca1a6..50b904661d 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -1430,7 +1430,7 @@ static struct ext4_extent_header *ext4fs_get_extent_block
i++;
if (i >= le16_to_cpu(ext_block->eh_entries))
break;
- } while (fileblock > le32_to_cpu(index[i].ei_block));
+ } while (fileblock >= le32_to_cpu(index[i].ei_block));
if (--i < 0)
return 0;
--
2.26.2