igc: Unlock on error in igc_io_resume()

Call rtnl_unlock() on this error path, before returning.

Fixes: bc23aa9 ("igc: Add pcie error handler support")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Gerhard Engleder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Dan Carpenter

drivers/net/ethernet/intel/igc/igc_main.c

@@ -7413,6 +7413,7 @@ static void igc_io_resume(struct pci_dev *pdev)
 	rtnl_lock();
 	if (netif_running(netdev)) {
 		if (igc_open(netdev)) {
+			rtnl_unlock();
 			netdev_err(netdev, "igc_open failed after reset\n");
 			return;
 		}