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ext2: Zero our b_size in ext2_quota_read()

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ext2_quota_read() doesn't initialize tmp_bh.b_size before calling
ext2_get_block() where we access it. Since it is a local variable it
might contain some garbage. Make sure it is filled with reasonable
value before passing.

Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Manish Katiyar 2009-02-12 21:57:04 +01:00 committed by Jan Kara
parent 620372a9ff
commit c16831b4cc
1 changed files with 1 additions and 0 deletions
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fs/ext2/super.c
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@ -1331,6 +1331,7 @@ static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data,
sb->s_blocksize - offset : toread;
tmp_bh.b_state = 0;
tmp_bh.b_size = sb->s_blocksize;
err = ext2_get_block(inode, blk, &tmp_bh, 0);
if (err < 0)
return err;