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-rw-r--r--mm/fremap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/fremap.c b/mm/fremap.c
index 6a8da7ee85fd..4723ac8d2fc2 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -129,7 +129,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
129 struct vm_area_struct *vma; 129 struct vm_area_struct *vma;
130 int err = -EINVAL; 130 int err = -EINVAL;
131 int has_write_lock = 0; 131 int has_write_lock = 0;
132 vm_flags_t vm_flags; 132 vm_flags_t vm_flags = 0;
133 133
134 if (prot) 134 if (prot)
135 return err; 135 return err;
@@ -163,8 +163,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
163 * and that the remapped range is valid and fully within 163 * and that the remapped range is valid and fully within
164 * the single existing vma. 164 * the single existing vma.
165 */ 165 */
166 vm_flags = vma->vm_flags; 166 if (!vma || !(vma->vm_flags & VM_SHARED))
167 if (!vma || !(vm_flags & VM_SHARED))
168 goto out; 167 goto out;
169 168
170 if (!vma->vm_ops || !vma->vm_ops->remap_pages) 169 if (!vma->vm_ops || !vma->vm_ops->remap_pages)