net: bonding: Fix format string mismatch in bond_sysfs.c

Fix format string mismatch in bonding_show_min_links().

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 0e8b268..5f6babc 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -534,7 +534,7 @@
 {
 	struct bonding *bond = to_bond(d);
 
-	return sprintf(buf, "%d\n", bond->params.min_links);
+	return sprintf(buf, "%u\n", bond->params.min_links);
 }
 
 static ssize_t bonding_store_min_links(struct device *d,