ptp: fix format string mismatch in ptp_sysfs.c

Fix format string mismatch in ptp_sysfs.c. Use %u for unsigned int.

Fixes: 73f3706 ("ptp: support ptp physical/virtual clocks conversion")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/ptp/ptp_sysfs.c

@@ -179,7 +179,7 @@ static ssize_t n_vclocks_show(struct device *dev,
 	if (mutex_lock_interruptible(&ptp->n_vclocks_mux))
 		return -ERESTARTSYS;
 
-	size = snprintf(page, PAGE_SIZE - 1, "%d\n", ptp->n_vclocks);
+	size = snprintf(page, PAGE_SIZE - 1, "%u\n", ptp->n_vclocks);
 
 	mutex_unlock(&ptp->n_vclocks_mux);
 
@@ -252,7 +252,7 @@ static ssize_t max_vclocks_show(struct device *dev,
 	struct ptp_clock *ptp = dev_get_drvdata(dev);
 	ssize_t size;
 
-	size = snprintf(page, PAGE_SIZE - 1, "%d\n", ptp->max_vclocks);
+	size = snprintf(page, PAGE_SIZE - 1, "%u\n", ptp->max_vclocks);
 
 	return size;
 }