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Re: [PATCH 1/5] tests/qtest/ipmi-kcs: Fix assert side-effect


From: Greg Kurz
Subject: Re: [PATCH 1/5] tests/qtest/ipmi-kcs: Fix assert side-effect
Date: Wed, 2 Sep 2020 10:50:13 +0200

On Wed,  2 Sep 2020 10:07:57 +0200
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

> Fix assert side-effect reported by Coverity:
> 
>   /qemu/tests/qtest/ipmi-kcs-test.c: 84 in kcs_wait_obf()
>   83         while (IPMI_KCS_CMDREG_GET_OBF() == 0) {
>   >>>     CID 1432368:  Incorrect expression  (ASSERT_SIDE_EFFECT)
>   >>>     Argument "--count" of g_assert() has a side effect.  The containing 
> function might work differently in a non-debug build.
>   84             g_assert(--count != 0);
> 
> Reported-by: Coverity (CID 1432368)
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  tests/qtest/ipmi-kcs-test.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/qtest/ipmi-kcs-test.c b/tests/qtest/ipmi-kcs-test.c
> index 693a6aacb52..fc0a918c8d1 100644
> --- a/tests/qtest/ipmi-kcs-test.c
> +++ b/tests/qtest/ipmi-kcs-test.c
> @@ -81,7 +81,8 @@ static void kcs_wait_obf(void)
>  {
>      unsigned int count = 1000;
>      while (IPMI_KCS_CMDREG_GET_OBF() == 0) {
> -        g_assert(--count != 0);
> +        --count;
> +        g_assert(count != 0);
>      }
>  }
>  




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