diff options
| author | Michal Kosiarz <michal.kosiarz@intel.com> | 2016-10-11 15:26:56 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-10-31 14:26:40 -0700 |
| commit | 999b315d39906341fadcb65ee6aba7f5cf38b830 (patch) | |
| tree | 78da18c0303a88efe6f24f7544a5b7b63499903b | |
| parent | 13fd3f9cc3def8b276c7913ae4acbfa2653cb198 (diff) | |
i40e: Fix for division by zero
For some cases when reading from device are incorrect or image is
incorrect, this part of code causes crash due to division by zero.
Change-ID: I8961029a7a87b0a479995823ef8fcbf6471405e1
Signed-off-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_common.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index a47594603d69..98791ba57211 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -3313,8 +3313,10 @@ static void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff, /* partition id is 1-based, and functions are evenly spread * across the ports as partitions */ - hw->partition_id = (hw->pf_id / hw->num_ports) + 1; - hw->num_partitions = num_functions / hw->num_ports; + if (hw->num_ports != 0) { + hw->partition_id = (hw->pf_id / hw->num_ports) + 1; + hw->num_partitions = num_functions / hw->num_ports; + } /* additional HW specific goodies that might * someday be HW version specific |