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authorShannon Nelson <shannon.nelson@intel.com>2013-11-28 06:39:36 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2014-01-04 23:54:42 -0800
commit78681b1f875a9c20f9774af16fb927064f75b461 (patch)
treecce02b2e579278de14b77ceffb8afc4c578f1f4b /drivers
parent90bb776ae58ff989010d15bef03b24c14c4d1e67 (diff)
downloadlinux-78681b1f875a9c20f9774af16fb927064f75b461.tar.bz2
i40e: catch unset q_vector
Don't try to free a q_vector that hasn't been set up as it can panic the kernel. Change-Id: I0650cc6c441d0779788c522c790293c276d14fbc Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2785d7e59b30..bfc3037c9426 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3153,7 +3153,8 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi)
u16 vector = i + base;
/* free only the irqs that were actually requested */
- if (vsi->q_vectors[i]->num_ringpairs == 0)
+ if (!vsi->q_vectors[i] ||
+ !vsi->q_vectors[i]->num_ringpairs)
continue;
/* clear the affinity_mask in the IRQ descriptor */