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Re: [dm-devel] dm: Fix possible NULL dereferences

From: Mike Snitzer <snitzer redhat com>
To: device-mapper development <dm-devel redhat com>
Subject: Re: [dm-devel] dm: Fix possible NULL dereferences
Date: Tue, 2 Nov 2010 12:16:34 -0400

On Sun, Sep 19 2010 at  8:01pm -0400,
Michał Mirosław <mirq-linux rere qmqm pl> wrote:

> bio_alloc_bioset() might return NULL. Or maybe passed
> bio_sets are guaranteed to have enough free bios?

The passed bio_set is allocated in dm_alloc_md_mempools() using
bioset_create() -- so it does have allocation guarantees.

Mike

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