On Tue, Oct 18, 2016 at 08:49:42PM -0400, Nayna Jain wrote:
> + struct tpm_chip_seqops *chip_seqops;
> + const struct seq_operations *seqops;
> + struct tpm_chip *chip;
> +
> + inode_lock(inode);
> + if (!inode->i_private) {
> + inode_unlock(inode);
> + return -ENODEV;
> + }
> + chip_seqops = (struct tpm_chip_seqops *)inode->i_private;
> + seqops = chip_seqops->seqops;
> + chip = chip_seqops->chip;
> + get_device(&chip->dev);
The inode_unlock should be here, not further below - reduces the risk of
deadlocking.
> + rc = read_log(chip);
> + /*
> + * read_log failure means event log is not supported except for ENOMEM
> + */
> + if (rc < 0) {
> + if (rc == -ENOMEM)
It would be more consistent to use -ENODEV as indicating no support,
and everything else is pass as an error
Rest looks right to me
Jason
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