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Re: [libvirt] [PATCH V4 2/6] libxlDomainDetachNetDevice: cleanup codes



On 03/21/2016 02:11 AM, Chunyan Liu wrote:
> Adjust codes to make it cleaner.
>
> Signed-off-by: Chunyan Liu <cyliu suse com>
> ---
>  src/libxl/libxl_driver.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
> index 05ebe29..74ebea4 100644
> --- a/src/libxl/libxl_driver.c
> +++ b/src/libxl/libxl_driver.c
> @@ -3413,8 +3413,10 @@ libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver,
>      char mac[VIR_MAC_STRING_BUFLEN];
>      int ret = -1;
>  
> +    libxl_device_nic_init(&nic);
> +
>      if ((detachidx = virDomainNetFindIdx(vm->def, net)) < 0)
> -        goto out;
> +        goto cleanup;
>  
>      detach = vm->def->nets[detachidx];
>  
> @@ -3424,10 +3426,9 @@ libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver,
>           */
>          ret = libxlDomainDetachHostDevice(driver, vm,
>                                            virDomainNetGetActualHostdev(detach));
> -        goto out;
> +        goto cleanup;
>      }
>  
> -    libxl_device_nic_init(&nic);
>      if (libxl_mac_to_device_nic(cfg->ctx, vm->def->id,
>                                  virMacAddrFormat(&detach->mac, mac), &nic))
>          goto cleanup;
> @@ -3442,7 +3443,6 @@ libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver,
>  
>   cleanup:
>      libxl_device_nic_dispose(&nic);
> - out:
>      if (!ret)
>          virDomainNetRemove(vm->def, detachidx);
>      virObjectUnref(cfg);

Same comment here as in patch 1. The device can be removed after a successful
libxl_device_nic_remove(). I've squashed in the below change.

Regards,
Jim

diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index ae900d8..b2e23c0 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -3438,12 +3438,11 @@ libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver,
         goto cleanup;
     }
 
+    virDomainNetRemove(vm->def, detachidx);
     ret = 0;
 
  cleanup:
     libxl_device_nic_dispose(&nic);
-    if (!ret)
-        virDomainNetRemove(vm->def, detachidx);
     virObjectUnref(cfg);
     return ret;
 }


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