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Re: [Xen-devel] [PATCH for-4.5 1/3] python/xc: Fix multiple issues in pyflask_context_to_sid()

On 09/12/14 14:27, Ian Campbell wrote:
> On Fri, 2014-11-28 at 11:37 +0000, Ian Campbell wrote:
>> On Thu, 2014-11-27 at 12:34 +0000, Andrew Cooper wrote:
>>> The error handling from a failed memory allocation should return
>>> PyErr_SetFromErrno(xc_error_obj); rather than simply calling it and 
>>> continuing
>>> to the memcpy() below, with the dest pointer being NULL.
>>> Furthermore, the context string is simply an input parameter to the 
>>> hypercall,
>>> and is not mutated anywhere along the way.  The error handling elsewhere in
>>> the function can be simplified by not duplicating it to start with.
>>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>> Coverity-IDs: 1055305 1055721
>>> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
>>> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
>>> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
>>> CC: Xen Coverity Team <coverity@xxxxxxx>
>> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>> This would have been far more obviously correct for 4.5 if you had stuck
>> to fixing the issue in the first paragraph.
> Konrad, given
> http://article.gmane.org/gmane.comp.emulators.xen.devel/224881 does this
> have a release ack?
> Ian.

I can resubmit with a clearer description if that would help clarity,
but the code is correct for the fixes (not fantastically well) described.


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