iwlwifi: mvm: only release the trans ref if d0i3 is supported in fw

If d0i3 is not supported by the firmware (or if it's disabled via
module parameters) we shouldn't release the initial transport
reference, so that we won't enter runtime suspend.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 4716176cbfe0d5c83f8d88cbd430e564fa413dfe..f3283f4ea3dfcd14975c79bbc03022e391921bb4 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -672,8 +672,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
        memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 
-       /* rpm starts with a taken reference, we can release it now */
-       iwl_trans_unref(mvm->trans);
+       /* The transport always starts with a taken reference, we can
+        * release it now if d0i3 is supported */
+       if (iwl_mvm_is_d0i3_supported(mvm))
+               iwl_trans_unref(mvm->trans);
 
        iwl_mvm_tof_init(mvm);