Re: [-mm PATCH] fixed PCMCIA au1000_generic.c

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On Thu, 5 Oct 2006 23:18:44 -0700
"Om Narasimhan" <[email protected]> wrote:

> On 10/4/06, Yoichi Yuasa <[email protected]> wrote:
> > Hi,
> >
> Sorry for the late reply.
> > pcmcia-au1000_generic-fix.patch has a problem.
> > It needs more fix.
> > ops->shutdown(skt), skt is out of definition scope.
> 
> Is it so?
> After applying the patch, the code would look like,
> -----
> 
> 		skt->status = au1x00_pcmcia_skt_state(skt);
> 
> 		ret = pcmcia_register_socket(&skt->socket);
> 		if (ret)
> 			goto out_err;
> <snip>
> 
> out_err:
> 	flush_scheduled_work();
> 	ops->hw_shutdown(skt);
> 	while (i-- > 0) {
> 		struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
> 		del_timer_sync(&skt->poll_timer);
> 		pcmcia_unregister_socket(&skt->socket);
> 		flush_scheduled_work();
> 		ops->hw_shutdown(skt);
> 		i--;
> 	}
> 	kfree(sinfo);
> -----
> The  first call to ops->shutdown(skt) would free the skt (of the
> function scope). The internal skt to the loop is a placeholder to call
> shutdown().
> Or did I miss any point?


	for (i = 0; i < nr; i++) {
		struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i); <-- 1st skt definition
<snip>
		ret = pcmcia_register_socket(&skt->socket);
		if (ret)
			goto out_err;

		WARN_ON(skt->socket.sock != i);

		add_timer(&skt->poll_timer);
	}
<snip>

out_err:
	flush_scheduled_work();
	ops->hw_shutdown(skt); <-- skt undeclared
	while (i-- > 0) {
		struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i); <-- 2nd skt definition
		del_timer_sync(&skt->poll_timer);
		pcmcia_unregister_socket(&skt->socket);
		flush_scheduled_work();
		ops->hw_shutdown(skt);
	}

Yoichi
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