[ 62/74] iwlwifi: pcie: disable L1 Active after pci_enable_device

[Greg Kroah-Hartman]

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>

commit eabc4ac5d7606a57ee2b7308cb7323ea8f60183b upstream.

As Arjan pointed out, we mustn't do anything related to PCI
configuration until the device is properly enabled with
pci_enable_device().

Reported-by: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/net/wireless/iwlwifi/pcie/trans.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1481,16 +1481,16 @@ struct iwl_trans *iwl_trans_pcie_alloc(s
 	spin_lock_init(&trans_pcie->reg_lock);
 	init_waitqueue_head(&trans_pcie->ucode_write_waitq);
 
-	/* W/A - seems to solve weird behavior. We need to remove this if we
-	 * don't want to stay in L1 all the time. This wastes a lot of power */
-	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
-			       PCIE_LINK_STATE_CLKPM);
-
 	if (pci_enable_device(pdev)) {
 		err = -ENODEV;
 		goto out_no_pci;
 	}
 
+	/* W/A - seems to solve weird behavior. We need to remove this if we
+	 * don't want to stay in L1 all the time. This wastes a lot of power */
+	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+			       PCIE_LINK_STATE_CLKPM);
+
 	pci_set_master(pdev);
 
 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));


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