Re: [PATCH cgroup/for-4.8] cgroup: allow NULL return from ss->css_alloc()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jun 21, 2016 at 01:06:24PM -0400, Tejun Heo wrote:
> cgroup core expected css_alloc to return an ERR_PTR value on failure
> and caused NULL deref if it returned NULL.  It's an easy mistake to
> make from an alloc function and there's no ambiguity in what's being
> indicated.  Update css_create() so that it interprets NULL return from
> css_alloc as -ENOMEM.
> 
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>

Would it be better to remove the error code instead and have everybody
return NULL? AFAICS, everybody is returning either the object or the
-ENOMEM error code right now.

What error condition is there for an allocation function?
--
To unsubscribe from this list: send the line "unsubscribe cgroups" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]     [Monitors]

  Powered by Linux