rt2x00pci: Use PCI MSIs whenever possible

All PCIe devices must support MSIs, make use of them.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index dc49e525ae5e..76d95deb274b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -105,11 +105,13 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops)
                 goto exit_release_regions;
         }
 
+        pci_enable_msi(pci_dev);
+
         hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
         if (!hw) {
                 rt2x00_probe_err("Failed to allocate hardware\n");
                 retval = -ENOMEM;
-                goto exit_release_regions;
+                goto exit_disable_msi;
         }
 
         pci_set_drvdata(pci_dev, hw);
@@ -150,6 +152,9 @@ exit_free_reg:
 exit_free_device:
         ieee80211_free_hw(hw);
 
+exit_disable_msi:
+        pci_disable_msi(pci_dev);
+
 exit_release_regions:
         pci_release_regions(pci_dev);
 
@@ -174,6 +179,8 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
         rt2x00pci_free_reg(rt2x00dev);
         ieee80211_free_hw(hw);
 
+        pci_disable_msi(pci_dev);
+
         /*
          * Free the PCI device data.
          */