diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 6db1c1bfeb98..59e095362c81 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -288,6 +288,7 @@ struct binder_proc {
 	struct rb_root refs_by_node;
 	int pid;
 	struct vm_area_struct *vma;
+	struct mm_struct *vma_vm_mm;
 	struct task_struct *tsk;
 	struct files_struct *files;
 	struct hlist_node deferred_work_node;
@@ -633,7 +634,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 	if (mm) {
 		down_write(&mm->mmap_sem);
 		vma = proc->vma;
-		if (vma && mm != vma->vm_mm) {
+		if (vma && mm != proc->vma_vm_mm) {
 			pr_err("binder: %d: vma mm and task mm mismatch\n",
 				proc->pid);
 			vma = NULL;
@@ -2776,6 +2777,7 @@ static void binder_vma_close(struct vm_area_struct *vma)
 		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
 		     (unsigned long)pgprot_val(vma->vm_page_prot));
 	proc->vma = NULL;
+	proc->vma_vm_mm = NULL;
 	binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES);
 }
 
@@ -2858,6 +2860,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	barrier();
 	proc->files = get_files_struct(proc->tsk);
 	proc->vma = vma;
+	proc->vma_vm_mm = vma->vm_mm;
 
 	/*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n",
 		 proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/