Re: [PATCH] nwfilter: variable 'obj' must be initialized inside nwfilterBindingCreateXML().

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On Tue, Jun 26, 2018 at 11:47:53PM -0300, Julio Faracco wrote:
> The function nwfilterBindingCreateXML() is failing to compile due to a
> conditional branch which leads to a undefined 'obj' variable. So 'obj'
> must have a initial value to avoid compilation errors. See the problem:
> 
>   CC       nwfilter/libvirt_driver_nwfilter_impl_la-nwfilter_driver.lo
> nwfilter/nwfilter_driver.c:752:9: error: variable 'obj' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
>     if (virNWFilterBindingCreateXMLEnsureACL(conn, def) < 0)
>         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> nwfilter/nwfilter_driver.c:779:10: note: uninitialized use occurs here
>     if (!obj)
>          ^~~
> nwfilter/nwfilter_driver.c:752:5: note: remove the 'if' if its condition is always false
>     if (virNWFilterBindingCreateXMLEnsureACL(conn, def) < 0)
>     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> nwfilter/nwfilter_driver.c:742:33: note: initialize the variable 'obj' to silence this warning
>     virNWFilterBindingObjPtr obj;
>                                 ^
>                                  = NULL
> 
> This commit initialized 'obj' with NULL to fix the error properly.
> 
> Signed-off-by: Julio Faracco <jcfaracco@xxxxxxxxx>
> ---
>  src/nwfilter/nwfilter_driver.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Pavel Hrdina <phrdina@xxxxxxxxxx>

Pushed now, thanks.

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