diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mremap.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index 1fb0f90..034e2d3 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -345,25 +345,25 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr, struct vm_area_struct *vma = find_vma(mm, addr); if (!vma || vma->vm_start > addr) - goto Efault; + return ERR_PTR(-EFAULT); if (is_vm_hugetlb_page(vma)) - goto Einval; + return ERR_PTR(-EINVAL); /* We can't remap across vm area boundaries */ if (old_len > vma->vm_end - addr) - goto Efault; + return ERR_PTR(-EFAULT); /* Need to be careful about a growing mapping */ if (new_len > old_len) { unsigned long pgoff; if (vma->vm_flags & (VM_DONTEXPAND | VM_PFNMAP)) - goto Efault; + return ERR_PTR(-EFAULT); pgoff = (addr - vma->vm_start) >> PAGE_SHIFT; pgoff += vma->vm_pgoff; if (pgoff + (new_len >> PAGE_SHIFT) < pgoff) - goto Einval; + return ERR_PTR(-EINVAL); } if (vma->vm_flags & VM_LOCKED) { @@ -372,29 +372,20 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr, lock_limit = rlimit(RLIMIT_MEMLOCK); locked += new_len - old_len; if (locked > lock_limit && !capable(CAP_IPC_LOCK)) - goto Eagain; + return ERR_PTR(-EAGAIN); } if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) - goto Enomem; + return ERR_PTR(-ENOMEM); if (vma->vm_flags & VM_ACCOUNT) { unsigned long charged = (new_len - old_len) >> PAGE_SHIFT; if (security_vm_enough_memory_mm(mm, charged)) - goto Enomem; + return ERR_PTR(-ENOMEM); *p = charged; } return vma; - -Efault: /* very odd choice for most of the cases, but... */ - return ERR_PTR(-EFAULT); -Einval: - return ERR_PTR(-EINVAL); -Enomem: - return ERR_PTR(-ENOMEM); -Eagain: - return ERR_PTR(-EAGAIN); } static unsigned long mremap_to(unsigned long addr, unsigned long old_len, |
