Re: [PATCH] conf: fix a failure when detaching a usb device

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On 26.03.2013 15:17, Guannan Ren wrote:
>  #virsh detach-device $guest usb.xml
>  error: Failed to detach device from usb2.xml
>  error: operation failed: host usb device vendor=0x0951 \
>  product=0x1625 not found
> 
> This regresstion is due to a typo in matching function. The first
> argument is always the usb device that we are checking for. If the
> usb xml file provided by user contains bus and device info, we try
> to search it by them, otherwise, we use vendor and product info.
> 
> The bug occurred only when detaching a usb device with no bus and
> device info provided in the usb xml file.
> ---
>  src/conf/domain_conf.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 4cae0d3..2b2f35c 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -8541,7 +8541,7 @@ static int
>  virDomainHostdevMatchSubsysUSB(virDomainHostdevDefPtr a,
>                                 virDomainHostdevDefPtr b)
>  {
> -    if (b->source.subsys.u.usb.bus && b->source.subsys.u.usb.device) {
> +    if (a->source.subsys.u.usb.bus && a->source.subsys.u.usb.device) {
>          /* specified by bus location on host */
>          if (a->source.subsys.u.usb.bus == b->source.subsys.u.usb.bus &&
>              a->source.subsys.u.usb.device == b->source.subsys.u.usb.device)
> 

ACK

Michal

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