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Re: [Qemu-ppc] [PATCH qemu] xics-kvm: Fix compile warning


From: Greg Kurz
Subject: Re: [Qemu-ppc] [PATCH qemu] xics-kvm: Fix compile warning
Date: Tue, 19 Jun 2018 13:33:45 +0200

On Tue, 19 Jun 2018 18:56:31 +1000
Alexey Kardashevskiy <address@hidden> wrote:

> This fixes uninitialized variable warning:
> 
> /home/aik/p/qemu/hw/intc/xics_kvm.c: In function ‘ics_set_kvm_state’:
> /home/aik/p/qemu/hw/intc/xics_kvm.c:281:20: warning: ‘ret’ may be used 
> uninitialized in this function [-Wmaybe-uninitialized]
>              return ret;
>                     ^~~
> 
> Discovered with gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0 from Ubuntu 18.04.
> 
> Fixes: bf358b541b8 "xics_kvm: use KVM helpers"
> Signed-off-by: Alexey Kardashevskiy <address@hidden>
> ---

Already fixed and present in David's last pull req:

https://lists.nongnu.org/archive/html/qemu-ppc/2018-06/msg00682.html

>  hw/intc/xics_kvm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
> index 8bdf6af..48efbce 100644
> --- a/hw/intc/xics_kvm.c
> +++ b/hw/intc/xics_kvm.c
> @@ -273,8 +273,8 @@ static int ics_set_kvm_state(ICSState *ics, int 
> version_id)
>                  state |= KVM_XICS_QUEUED;
>          }
>  
> -        kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
> -                          i + ics->offset, &state, true, &local_err);
> +        ret = kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
> +                                i + ics->offset, &state, true, &local_err);
>          if (local_err) {
>              error_report("Unable to restore KVM interrupt controller state"
>                      " for IRQs %d: %s", i + ics->offset, strerror(errno));




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