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authorIngo Molnar <mingo@elte.hu>2008-04-18 15:32:22 -0400
committerIngo Molnar <mingo@elte.hu>2008-04-18 17:40:49 -0400
commitd1a4be630fb068f251d64b62919f143c49ca8057 (patch)
treefbd9727874d3377e2c2d0699fabb6c12427408a9 /arch/x86/mm/pageattr.c
parent2cca775baecbfede2fec20c99add709232311fe7 (diff)
x86 PAT: fix mmap() of holes
do not return a -EINVAL when mmap()-ing PCI holes. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r--arch/x86/mm/pageattr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 7d9517abc9af..f7823a172868 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -542,7 +542,7 @@ static int __change_page_attr(struct cpa_data *cpa, int primary)
542repeat: 542repeat:
543 kpte = lookup_address(address, &level); 543 kpte = lookup_address(address, &level);
544 if (!kpte) 544 if (!kpte)
545 return primary ? -EINVAL : 0; 545 return 0;
546 546
547 old_pte = *kpte; 547 old_pte = *kpte;
548 if (!pte_val(old_pte)) { 548 if (!pte_val(old_pte)) {