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Re: [Xen-devel] [PATCH v3 5/9] libxl: Rearrange qemu upstream disk argument code

On Mon, Apr 4, 2016 at 6:16 PM, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:
> On 04/04/16 18:11, Andrew Cooper wrote:
>> On 04/04/16 17:59, Ian Jackson wrote:
>>> George Dunlap writes ("Re: [PATCH v3 5/9] libxl: Rearrange qemu upstream 
>>> disk argument code"):
>>>> I looked through the patch in the branch provided in your reply to 0/9
>>>> [1], and it looks correct; morever, I tested it and it and the basic
>>>> functionality (using the "dummy" block script) still works.
>>>> Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>
>>>> Tested-by: George Dunlap <george.dunlap@xxxxxxxxxx>
>>>> [1] git://xenbits.xenproject.org/people/iwj/xen.git wip.gwd.hotplug-v3.1
>>> Thanks, I have pushed it (rebased) to staging.
>> New build failure on CentOS 7
>> libxl_dm.c: In function 'libxl__build_device_model_args':
>> libxl_dm.c:1374:27: error: 'target_path' may be used uninitialized in
>> this function [-Werror=maybe-uninitialized]
>>                      drive = libxl__sprintf(gc, "%s,file=%s,format=%s",
>>                            ^
>> libxl_dm.c:1310:25: note: 'target_path' was declared here
>>              const char *target_path;
>>                          ^
>> cc1: all warnings being treated as errors
> Sorry - sent too early.  Specifically, target_path is genuinely
> uninitialised in the case that there is an empty CDROM specified.

Indeed -- what's strange is that I actually tested this on a CentOS 7
image and it didn't complain.

Anyway, a patch will be on its way...


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