[TG3]: Save MSI state before suspend.

This fixes the following problem:

http://bugzilla.kernel.org/show_bug.cgi?id=7969

The MSI state needs to be saved during suspend.  PCI state saved
during tg3_init_one() does not contain valid MSI state because
MSI hasn't been enabled.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index e136bae61970..0b5b8e7f55ac 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -12016,6 +12016,9 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
         tg3_full_unlock(tp);
 
+        /* Save MSI address and data for resume.  */
+        pci_save_state(pdev);
+
         err = tg3_set_power_state(tp, pci_choose_state(pdev, state));
         if (err) {
                 tg3_full_lock(tp, 0);