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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-06 05:51:07 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-06 05:51:07 -0400 |
| commit | 012e060c95e547eceea4a12c6f58592473bf4011 (patch) | |
| tree | b57d3eafb50ce517577d2cf366c9ef0b4b286589 /arch/ppc64/kernel/vdso.c | |
| parent | 923f122573851d18a3832ca808269fa2d5046fb1 (diff) | |
| parent | ed39f731ab2e77e58122232f6e27333331d7793d (diff) | |
Merge branch 'master'
Diffstat (limited to 'arch/ppc64/kernel/vdso.c')
| -rw-r--r-- | arch/ppc64/kernel/vdso.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/ppc64/kernel/vdso.c b/arch/ppc64/kernel/vdso.c index 4777676365f..efa985f05ac 100644 --- a/arch/ppc64/kernel/vdso.c +++ b/arch/ppc64/kernel/vdso.c @@ -224,10 +224,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack) vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL); if (vma == NULL) return -ENOMEM; - if (security_vm_enough_memory(vdso_pages)) { - kmem_cache_free(vm_area_cachep, vma); - return -ENOMEM; - } + memset(vma, 0, sizeof(*vma)); /* @@ -237,8 +234,10 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack) */ vdso_base = get_unmapped_area(NULL, vdso_base, vdso_pages << PAGE_SHIFT, 0, 0); - if (vdso_base & ~PAGE_MASK) + if (vdso_base & ~PAGE_MASK) { + kmem_cache_free(vm_area_cachep, vma); return (int)vdso_base; + } current->thread.vdso_base = vdso_base; @@ -266,7 +265,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack) vma->vm_ops = &vdso_vmops; down_write(&mm->mmap_sem); - insert_vm_struct(mm, vma); + if (insert_vm_struct(mm, vma)) { + up_write(&mm->mmap_sem); + kmem_cache_free(vm_area_cachep, vma); + return -ENOMEM; + } mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; up_write(&mm->mmap_sem); |