diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c
index e2dc964..fcc1bc0 100644
--- a/drivers/mtd/chips/gen_probe.c
+++ b/drivers/mtd/chips/gen_probe.c
@@ -155,8 +155,7 @@
 			pchip->start = (i << cfi.chipshift);
 			pchip->state = FL_READY;
 			init_waitqueue_head(&pchip->wq);
-			spin_lock_init(&pchip->_spinlock);
-			pchip->mutex = &pchip->_spinlock;
+			mutex_init(&pchip->mutex);
 		}
 	}