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i40iw: Fix potential fcn_id_array out of bounds 

Avoid out of bounds error by utilizing I40IW_MAX_STATS_COUNT
instead of I40IW_INVALID_FCN_ID.

Signed-off-by: Christopher N Bednarz <christoper.n.bednarz@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christopher N Bednarz 2017-08-08 20:38:48 -05:00 committed by Doug Ledford
parent a28f047e5f
commit aa939c12ab
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/i40iw/i40iw_ctrl.c
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@ -4881,7 +4881,7 @@ void i40iw_vsi_stats_free(struct i40iw_sc_vsi *vsi)
{
u8 fcn_id = vsi->fcn_id;
if ((vsi->stats_fcn_id_alloc) && (fcn_id != I40IW_INVALID_FCN_ID))
if (vsi->stats_fcn_id_alloc && fcn_id < I40IW_MAX_STATS_COUNT)
vsi->dev->fcn_id_array[fcn_id] = false;
i40iw_hw_stats_stop_timer(vsi);
}