diff options
| author |   Shannon Nelson <shannon.nelson@intel.com> | 2013-11-26 10:49:26 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-12-17 22:41:34 -0800 |
| commit | 29d0790ef3acd869bc392676a7623e5613ab33e8 (patch) | |
| tree | 31a28df3da6e71bf502db57976ac37437655cac3 /drivers/net/ethernet/intel/i40e/i40e_debugfs.c | |
| parent | i40e: Fix dump output from debugfs calls (diff) | |
| download | linux-dev-29d0790ef3acd869bc392676a7623e5613ab33e8.tar.xz linux-dev-29d0790ef3acd869bc392676a7623e5613ab33e8.zip | |
i40e: prevent null pointer exception in dump descriptor
Check that rings were allocated before trying to reference them.
Change-Id: I33151e55ab7a7a305fecdb88ccb2709ac246b7c7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 18296f8fcb68..0ce0664de2ea 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -782,6 +782,12 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); return; } + if (!vsi->tx_rings) { + dev_info(&pf->pdev->dev, + "descriptor rings have not been allocated for vsi %d\n", + vsi_seid); + return; + } if (is_rx_ring) ring = *vsi->rx_rings[ring_id]; else |