i40e: potential array underflow in i40e_vc_process_vf_msg()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 15 Jan 2014 06:43:39 +0000 (06:43 +0000)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Thu, 20 Mar 2014 00:17:22 +0000 (17:17 -0700)
commitc243e96335c56e56dcf6a00593104554fb06b689
treeb1e4bdf0839e365490820b0090a9d793edbc4c06
parentff40dd5d44707e2964c1b24196a86bf1938ce32b
i40e: potential array underflow in i40e_vc_process_vf_msg()

If "vf_id" is smaller than hw->func_caps.vf_base_id then it leads to
an array underflow of the pf->vf[] array.  This is unlikely to happen
unless the hardware is bad, but it's a small change and it silences a
static checker warning.

Fixes: 7efa84b7abc1 ('i40e: support VFs on PFs other than 0')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c