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Re: [libvirt] [PATCH v2] qemu: Fix a regression of attaching device



于 2011年07月15日 23:13, Eric Blake 写道:
On 07/15/2011 09:16 AM, Osier Yang wrote:
The regression is introduced by Commit da1eba6b, the new
codes with this commit doesn't reset "ret" to "-1" when
it fails on parsing the device XML (live device attachment)

This patch changes the codes to reset the "ret" and "-1",
and also changes the codes so that it don't modify "ret"
for condition checking.

How to reproduce:

<disk type='oops' device='disk'>
   <driver name='qemu' type='raw'/>
   <source file='/var/lib/libvirt/images/test.img'/>
   <target dev='vda' bus='virtio'/>
</disk>

Device attached successfully
---
  src/qemu/qemu_driver.c |   23 +++++++++++++++++------
  1 files changed, 17 insertions(+), 6 deletions(-)
ACK.  The commit message is better this time, and the flow of logic,
although requiring more lines, is easier to understand.

          /*
           * update domain status forcibly because the domain status may be
           * changed even if we attach the device failed. For example, a
While you're touching this area of code,

s/even if we attach the device failed/even we failed to attach the device/


           * For example, a new controller may be created.
Also, delete the redundant "For example, a".


Thanks, pushed with better commit message and the comments updated.

Regards
Osier


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