Subject: Re: [PATCH 3.14-stable] net/mlx4_core: Preserve pci_dev_data after __mlx4_remove_one()

From: Or Gerlitz <[email-masked]>
Date: Sun, 1 Jun 2014 12:36:18 +0300

On 01/06/2014 12:30, Or Gerlitz wrote:
> Wait, I recently noticed that on 3.15-rcX if the host is rebooted when 
> the mlx4_core driver is loaded in SRIOV mode, we crash like that, 
> looking on this now, I think there's chance we can relate it to your 
> upstream change befdf89 "net/mlx4_core: Preserve pci_dev_data after 
> __mlx4_remove_one()"

this seems to fix the crash, will further evaluate and submit patch 
later today

index c187d74..c747736 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2629,7 +2629,7 @@ static void __mlx4_remove_one(struct pci_dev *pdev)
         int               pci_dev_data;
         int p;

-       if (priv->removed)
+       if (!priv || priv->removed)
                 return;

         pci_dev_data = priv->pci_dev_data;