[libvirt] [PATCH 6/8] Fix printing of pathnames on error in qemuDomainSnapshotLoad.

Chris Lalancette clalance at redhat.com
Fri Apr 23 18:23:11 UTC 2010


On 04/23/2010 02:10 PM, Matthias Bolte wrote:
> 2010/4/23 Chris Lalancette <clalance at redhat.com>:
>> While doing some testing of the snapshot code I noticed that
>> if qemuDomainSnapshotLoad failed, it would print a NULL as
>> part of the error.  That's not desirable, so leave the
>> full_path variable around until after we are done printing
>> errors.
>>
>> Signed-off-by: Chris Lalancette <clalance at redhat.com>
>> ---
>>  src/qemu/qemu_driver.c |    4 +++-
>>  1 files changed, 3 insertions(+), 1 deletions(-)
>>
>> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
>> index 2f889d9..7314328 100644
>> --- a/src/qemu/qemu_driver.c
>> +++ b/src/qemu/qemu_driver.c
>> @@ -1388,9 +1388,9 @@ static void qemuDomainSnapshotLoad(void *payload,
>>         }
>>
>>         ret = virFileReadAll(fullpath, 1024*1024*1, &xmlStr);
>> -        VIR_FREE(fullpath);
>>         if (ret < 0) {
>>             /* Nothing we can do here, skip this one */
>> +            VIR_FREE(fullpath);
>>             VIR_ERROR("Failed to read snapshot file %s: %s", fullpath,
>>                       virStrerror(errno, ebuf, sizeof(ebuf)));
> 
> You still free fullpath here before using it.
> 
>>             continue;
>> @@ -1400,12 +1400,14 @@ static void qemuDomainSnapshotLoad(void *payload,
>>         if (def == NULL) {
>>             /* Nothing we can do here, skip this one */
>>             VIR_ERROR("Failed to parse snapshot XML from file '%s'", fullpath);
>> +            VIR_FREE(fullpath);
> 
> Here it's in the correct order.

Oops, thanks.  Since it's a fairly minor patch, I fixed it with your correction
and pushed.

-- 
Chris Lalancette




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