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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>
This commit is contained in:
Jan Kara 2008-04-07 23:16:38 +02:00
parent 5fb28aa25a
commit 4f7874c868
1 changed files with 5 additions and 1 deletions
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6
fs/udf/super.c
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@ -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);