3.8.13.8 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Emmanuel Grumbach <emmanuel.grumb...@intel.com>
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 <ar...@linux.intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumb...@intel.com>
Signed-off-by: Johannes Berg <johannes.b...@intel.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/net/wireless/iwlwifi/pcie/trans.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c
b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 35708b9..be0f8b9 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1262,16 +1262,16 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev
*pdev,
spin_lock_init(&trans_pcie->irq_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));
--
1.8.1.2
--
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