s390/mm: use correct unlock function in gmap_ipte_notify
The page table lock is acquired with a call to get_locked_pte,
replace the plain spin_unlock with the correct unlock function
pte_unmap_unlock.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 9c8a6dd..71c7eff 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -762,7 +762,7 @@
gaddr += PAGE_SIZE;
len -= PAGE_SIZE;
}
- spin_unlock(ptl);
+ pte_unmap_unlock(ptep, ptl);
}
up_read(&gmap->mm->mmap_sem);
return rc;