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[PATCH] x86_64: minor odering correction to dump_pagetable() 

Checking of the validity of pointers should be consistently done before
dereferencing the pointer.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jan Beulich 2006-02-03 21:51:47 +01:00 committed by Linus Torvalds
parent 91522a964b
commit d646bce4c7
1 changed files with 1 additions and 2 deletions
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3
arch/x86_64/mm/fault.c
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@ -33,7 +33,6 @@
#include <asm/proto.h>
#include <asm/kdebug.h>
#include <asm-generic/sections.h>
#include <asm/kdebug.h>
/* Page fault error code bits */
#define PF_PROT (1<<0) /* or no page found */
@ -157,8 +156,8 @@ void dump_pagetable(unsigned long address)
pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
pgd += pgd_index(address);
printk("PGD %lx ", pgd_val(*pgd));
if (bad_address(pgd)) goto bad;
printk("PGD %lx ", pgd_val(*pgd));
if (!pgd_present(*pgd)) goto ret;
pud = __pud_offset_k((pud_t *)pgd_page(*pgd), address);