mlxsw: pci: Return error on PCI reset timeout

nirdotan · davem330 · commit 67c14cc9b350 · 2019-01-18T15:12:16.000-08:00
Return an appropriate error in the case when the driver timeouts on waiting for firmware to go out of PCI reset. Fixes: 233fa44 ("mlxsw: pci: Implement reset done check") Signed-off-by: Nir Dotan <nird@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -1367,10 +1367,10 @@ static int mlxsw_pci_sw_reset(struct mlxsw_pci *mlxsw_pci,
 		u32 val = mlxsw_pci_read32(mlxsw_pci, FW_READY);
 
 		if ((val & MLXSW_PCI_FW_READY_MASK) == MLXSW_PCI_FW_READY_MAGIC)
-			break;
+			return 0;
 		cond_resched();
 	} while (time_before(jiffies, end));
-	return 0;
+	return -EBUSY;
 }
 
 static int mlxsw_pci_alloc_irq_vectors(struct mlxsw_pci *mlxsw_pci)
