diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index 9d13a71c5367..e03c40692b00 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -284,7 +284,7 @@ static void __exit ptp_ixp_exit(void)
 {
 	free_irq(MASTER_IRQ, &ixp_clock);
 	free_irq(SLAVE_IRQ, &ixp_clock);
-	ixp46x_phc_clock = -1;
+	ixp46x_phc_index = -1;
 	ptp_clock_unregister(ixp_clock.ptp_clock);
 }
 
@@ -303,7 +303,7 @@ static int __init ptp_ixp_init(void)
 	if (IS_ERR(ixp_clock.ptp_clock))
 		return PTR_ERR(ixp_clock.ptp_clock);
 
-	ixp46x_phc_clock = ptp_clock_index(ixp_clock.ptp_clock);
+	ixp46x_phc_index = ptp_clock_index(ixp_clock.ptp_clock);
 
 	__raw_writel(DEFAULT_ADDEND, &ixp_clock.regs->addend);
 	__raw_writel(1, &ixp_clock.regs->trgt_lo);