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do allow reading from read only mappings...

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This commit is contained in:
Michel Daenzer 2003-05-17 00:37:34 +00:00
parent e5d3c7f260
commit b942999b59
2 changed files with 2 additions and 2 deletions
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2
linux-core/drm_vm.c
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@ -416,7 +416,7 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
vma->vm_flags &= VM_MAYWRITE;
vma->vm_flags &= (VM_READ | VM_MAYREAD);
#if defined(__i386__) || defined(__x86_64__)
pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
#else

2
linux/drm_vm.h
View file

@ -416,7 +416,7 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
vma->vm_flags &= VM_MAYWRITE;
vma->vm_flags &= (VM_READ | VM_MAYREAD);
#if defined(__i386__) || defined(__x86_64__)
pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
#else