igb: Cleanups to fix msleep warnings

This patch fixes WARNING:MSLEEP found by checkpatch check.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 93cac38..4025d7c 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1784,7 +1784,7 @@
 	wr32(E1000_TCTL, tctl);
 	/* flush both disables and wait for them to finish */
 	wrfl();
-	msleep(10);
+	usleep_range(10000, 11000);
 
 	igb_irq_disable(adapter);
 
@@ -1824,7 +1824,7 @@
 {
 	WARN_ON(in_interrupt());
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
-		msleep(1);
+		usleep_range(1000, 2000);
 	igb_down(adapter);
 	igb_up(adapter);
 	clear_bit(__IGB_RESETTING, &adapter->state);
@@ -5142,7 +5142,7 @@
 		max_frame = ETH_FRAME_LEN + ETH_FCS_LEN;
 
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
-		msleep(1);
+		usleep_range(1000, 2000);
 
 	/* igb_down has a dependency on max_frame_size */
 	adapter->max_frame_size = max_frame;