Re: [RFC wpan-tools] info: add frequency output to channel listing

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On Sun, May 31, 2015 at 02:24:49PM +0200, Alexander Aring wrote:
> On Fri, May 29, 2015 at 12:16:03PM +0000, Christoffer Holmstedt wrote:
> >  
> >  	if (tb_msg[NL802154_ATTR_CHANNEL])
> > -		printf("current_channel: %d\n", nla_get_u8(tb_msg[NL802154_ATTR_CHANNEL]));
> > +	{
> > +		unsigned char curr_channel;
> > +		curr_channel = nla_get_u8(tb_msg[NL802154_ATTR_CHANNEL]);
> > +		printf("current_channel: %d (", curr_channel);
> > +		print_freq(nla_get_u8(tb_msg[NL802154_ATTR_PAGE]), curr_channel);
> 
> Also this is problematic, because we don't check before if
> tb_msg[NL802154_ATTR_PAGE] isn't null.
> 
> When you like to use this value there, the easiest way would be:
> 
> if (tb_msg[NL802154_ATTR_CHANNEL] && tb_msg[NL802154_ATTR_PAGE])
> 
> instead of
> 
> if (tb_msg[NL802154_ATTR_CHANNEL]) above.
> 
> - Alex

Of course, will fix that.

-- 
Christoffer Holmstedt
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