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ice: Check for q_vector when stopping rings
There is a gap in time between a VF reset, which sets the q_vector to NULL, and the VF requesting mapping of the q_vectors. If ice_vsi_stop_tx_rings() is called during this time, a NULL pointer dereference is encountered. Add a check in ice_vsi_stop_tx_rings() to ensure the q_vector is set to avoid this situation from occurring. Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> 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>
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@ -1908,7 +1908,8 @@ int ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src,
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ice_for_each_txq(vsi, i) {
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ice_for_each_txq(vsi, i) {
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u16 v_idx;
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u16 v_idx;
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if (!vsi->tx_rings || !vsi->tx_rings[i]) {
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if (!vsi->tx_rings || !vsi->tx_rings[i] ||
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!vsi->tx_rings[i]->q_vector) {
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err = -EINVAL;
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err = -EINVAL;
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goto err_out;
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goto err_out;
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}
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}
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