Patch: Fix SMP hang on modem close

[Benjamin Herrenschmidt]

>
>Ben,
> This patch removes two dangling LOCK() statements for
>core99/pangea. The core99 one hung my dual g4.
>-roger

Good catch ! That would indeed have cause SMP lockups
when using the modem.

Thanks,
Ben.

>--- linux/arch/ppc/kernel/pmac_feature.c.orig   Tue
>Apr  2 08:17:31 2002
>+++ linux/arch/ppc/kernel/pmac_feature.c        Fri
>Apr  5 14:02:13 2002
>@@ -788,7 +788,7 @@
>                UNLOCK(flags); mdelay(250);
>LOCK(flags);
>                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio |
>KEYLARGO_GPIO_OUTOUT_DATA);
>                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
>-               UNLOCK(flags); mdelay(250);
>LOCK(flags);
>+               UNLOCK(flags); mdelay(250);
>        }
>        return 0;
> }
>@@ -1445,7 +1445,7 @@
>                UNLOCK(flags); mdelay(250);
>LOCK(flags);
>                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio |
>KEYLARGO_GPIO_OUTOUT_DATA);
>                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
>-               UNLOCK(flags); mdelay(250);
>LOCK(flags);
>+               UNLOCK(flags); mdelay(250);
>        }
>        return 0;
> }
>
>
>


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