diff options
author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-10-11 15:39:38 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-10-11 15:39:38 +0200 |
commit | 8af4b3d7044d83c5426da6e45a9c7948bc7fa231 (patch) | |
tree | 76e15a6cea6b526fe30c679f6e9bf60b08acf983 /drivers/misc/cxl/cxllib.c | |
parent | a5950f2617f71a3dce16520c4907bcdb31e654ba (diff) | |
parent | c2ebf788f927dcca72beead19fab5f5aba79a098 (diff) |
Merge branch 'acpi-pm' into pm-sleep
Diffstat (limited to 'drivers/misc/cxl/cxllib.c')
-rw-r--r-- | drivers/misc/cxl/cxllib.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/misc/cxl/cxllib.c b/drivers/misc/cxl/cxllib.c index 5dba23ca2e5f..dc9bc1807fdf 100644 --- a/drivers/misc/cxl/cxllib.c +++ b/drivers/misc/cxl/cxllib.c @@ -219,8 +219,17 @@ int cxllib_handle_fault(struct mm_struct *mm, u64 addr, u64 size, u64 flags) down_read(&mm->mmap_sem); - for (dar = addr; dar < addr + size; dar += page_size) { - if (!vma || dar < vma->vm_start || dar > vma->vm_end) { + vma = find_vma(mm, addr); + if (!vma) { + pr_err("Can't find vma for addr %016llx\n", addr); + rc = -EFAULT; + goto out; + } + /* get the size of the pages allocated */ + page_size = vma_kernel_pagesize(vma); + + for (dar = (addr & ~(page_size - 1)); dar < (addr + size); dar += page_size) { + if (dar < vma->vm_start || dar >= vma->vm_end) { vma = find_vma(mm, addr); if (!vma) { pr_err("Can't find vma for addr %016llx\n", addr); |