forked from luck/tmp_suning_uos_patched
[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>
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@ -33,7 +33,6 @@
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#include <asm/proto.h>
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#include <asm/kdebug.h>
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#include <asm-generic/sections.h>
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#include <asm/kdebug.h>
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/* Page fault error code bits */
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#define PF_PROT (1<<0) /* or no page found */
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@ -157,8 +156,8 @@ void dump_pagetable(unsigned long address)
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pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
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pgd += pgd_index(address);
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printk("PGD %lx ", pgd_val(*pgd));
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if (bad_address(pgd)) goto bad;
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printk("PGD %lx ", pgd_val(*pgd));
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if (!pgd_present(*pgd)) goto ret;
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pud = __pud_offset_k((pud_t *)pgd_page(*pgd), address);
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