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i40e: Fix to check for NULL

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This patch fixes an issue in the virt channel code, where a return
from i40e_find_vsi_from_id was not checked for NULL when applicable.
Without this patch, there is a risk for panic and static analysis
tools complain. This patch fixes the problem by adding the check
and adding an additional input check for similar reasons.

Change-ID: I7e9be88eb7a3addb50eadc451c8336d9e06f5394
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Carolyn Wyborny 2016-08-24 11:33:50 -07:00 committed by Jeff Kirsher
parent 8d9d927f4a
commit d4a0658d81
1 changed files with 10 additions and 1 deletions
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11
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@ -502,8 +502,16 @@ static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
u32 qtx_ctl;
int ret = 0;
if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
ret = -ENOENT;
goto error_context;
}
pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
vsi = i40e_find_vsi_from_id(pf, vsi_id);
if (!vsi) {
ret = -ENOENT;
goto error_context;
}
/* clear the context structure first */
memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
@ -1476,7 +1484,8 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
!i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
!vsi) {
aq_ret = I40E_ERR_PARAM;
goto error_param;
}