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ice: Check root pointer for validity 

ice_sched_get_tc_node uses pi->root without checking for NULL. Add a
check to prevent NULL pointer dereference.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@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:
Anirudh Venkataramanan 2019-08-08 07:39:34 -07:00 committed by Jeff Kirsher
parent 208ff75135
commit ade78c2ec1
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/ice/ice_sched.c
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@ -284,7 +284,7 @@ struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc)
{
u8 i;
if (!pi)
if (!pi || !pi->root)
return NULL;
for (i = 0; i < pi->root->num_children; i++)
if (pi->root->children[i]->tc_num == tc)