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[S390] ipl: Improve checking logic and remove switch defaults. 

A code analysis tool reported two warnings:
"The expression `ipl_info.type == IPL_TYPE_FCP' is true whenever evaluated."
and "Default is not possible". This patch improves the corresponding if
statement logic and removes the unnecessary switch defaults.

Signed-off-by:  Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Michael Holzheu 2009-03-26 15:24:51 +01:00 committed by Martin Schwidefsky
parent 58ace9f2a8
commit 008d2d112c
1 changed files with 6 additions and 7 deletions
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13
arch/s390/kernel/ipl.c
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@ -966,7 +966,6 @@ static void reipl_run(struct shutdown_trigger *trigger)
diag308(DIAG308_IPL, NULL);
break;
case REIPL_METHOD_FCP_DUMP:
default:
break;
}
disabled_wait((unsigned long) __builtin_return_address(0));
@ -1075,10 +1074,12 @@ static int __init reipl_fcp_init(void)
{
int rc;
if ((!diag308_set_works) && (ipl_info.type != IPL_TYPE_FCP))
return 0;
if ((!diag308_set_works) && (ipl_info.type == IPL_TYPE_FCP))
make_attrs_ro(reipl_fcp_attrs);
if (!diag308_set_works) {
if (ipl_info.type == IPL_TYPE_FCP)
make_attrs_ro(reipl_fcp_attrs);
else
return 0;
}
reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
if (!reipl_block_fcp)
@ -1259,7 +1260,6 @@ static void dump_run(struct shutdown_trigger *trigger)
diag308(DIAG308_DUMP, NULL);
break;
case DUMP_METHOD_NONE:
default:
return;
}
printk(KERN_EMERG "Dump failed!\n");
@ -1746,7 +1746,6 @@ void __init setup_ipl(void)
sizeof(ipl_info.data.nss.name));
break;
case IPL_TYPE_UNKNOWN:
default:
/* We have no info to copy */
break;
}