diff options
Diffstat (limited to 'drivers/dax/dax.c')
| -rw-r--r-- | drivers/dax/dax.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index b891a129b..ff6431377 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -211,11 +211,9 @@ int devm_create_dax_dev(struct dax_region *dax_region, struct resource *res, } dax_dev->dev = dev; - rc = devm_add_action(dax_region->dev, unregister_dax_dev, dev); - if (rc) { - unregister_dax_dev(dev); + rc = devm_add_action_or_reset(dax_region->dev, unregister_dax_dev, dev); + if (rc) return rc; - } return 0; @@ -325,8 +323,8 @@ static int check_vma(struct dax_dev *dax_dev, struct vm_area_struct *vma, if (!dax_dev->alive) return -ENXIO; - /* prevent private / writable mappings from being established */ - if ((vma->vm_flags & (VM_NORESERVE|VM_SHARED|VM_WRITE)) == VM_WRITE) { + /* prevent private mappings from being established */ + if ((vma->vm_flags & VM_SHARED) != VM_SHARED) { dev_info(dev, "%s: %s: fail, attempted private mapping\n", current->comm, func); return -EINVAL; @@ -461,7 +459,7 @@ static int __dax_dev_pmd_fault(struct dax_dev *dax_dev, } pgoff = linear_page_index(vma, pmd_addr); - phys = pgoff_to_phys(dax_dev, pgoff, PAGE_SIZE); + phys = pgoff_to_phys(dax_dev, pgoff, PMD_SIZE); if (phys == -1) { dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__, pgoff); |