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authorJan Kara <jack@suse.cz>2008-04-07 23:16:38 +0200
committerJan Kara <jack@suse.cz>2008-04-17 14:23:17 +0200
commit4f7874c868eaedd0e64b2f6c800bc852bdc7f38b (patch)
treeb663f87a4740cae9fdbeb09f9ee1a129ee4e618a
parent5fb28aa25ab0b71af2e441d68e63ad257e610a04 (diff)
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udf: Silence warning about accesses beyond end of device
Some of the computed positions of anchor block could be beyond the end of device. Skip reading such blocks. Signed-off-by: Jan Kara <jack@suse.cz>
-rw-r--r--fs/udf/super.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c
index b9e719de0704..28ed3f5ebd70 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -688,8 +688,12 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block,
uint16_t ident;
uint32_t location;
- if (varconv)
+ if (varconv) {
+ if (udf_fixed_to_variable(block) >=
+ sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+ return 0;
bh = sb_bread(sb, udf_fixed_to_variable(block));
+ }
else
bh = sb_bread(sb, block);
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