[libvirt] [Xen-devel] [PATCH 1/3] libxl: fix ref counting of libxlMigrationDstArgs

Jim Fehlig jfehlig at suse.com
Wed Jul 29 22:07:49 UTC 2015


On 07/20/2015 09:28 AM, Olaf Hering wrote:
> On Thu, Jul 16, Jim Fehlig wrote:
>
>> @@ -448,6 +438,8 @@ libxlDomainMigrationPrepare(virConnectPtr dconn,
>>           virObjectUnref(socks[i]);
>>       }
>>       VIR_FREE(socks);
>> +    virObjectUnref(args);
> This is now below the 'error' label, so args has to be initialized.
>
> [  149s] libxl/libxl_migration.c: In function 'libxlDomainMigrationPrepare':
> [  149s] libxl/libxl_migration.c:463:19: warning: 'args' may be used uninitialized in this function [-Wmaybe-uninitialized]
> [  149s]      virObjectUnref(args);
> [  149s]                    ^

Opps. I've squashed in the below obvious fix. Note it is safe to call 
virObjectUnref with a NULL object.

Any other comments on this series? It fixes bugs in migration, including a 
possible libvirtd crash, and would be a candidate to push during freeze IMO.

Regards,
Jim




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