iwlwifi: remove resp_pkt NULL checks

Contrary to what some of the comments say, if rfkill was
asserted the transport will return -ERFKILL instead of
success, if CMD_WANT_SKB was set, so it's not necessary
to check cmd.resp_pkt for being NULL if the return code
was success.

Validate that this is true in iwl_trans_send_cmd().

Most of the other code modifications were done with the
following spatch:
    @@
    struct iwl_host_cmd cmd;
    identifier pkt;
    @@
    <...
    (
    pkt = cmd.resp_pkt;
    ...
    -if (!pkt) { ... }
    |
    pkt = cmd.resp_pkt;
    ...
    -if (WARN_ON(!pkt)) { ... }
    |
    -if (!cmd.resp_pkt) { ... }
    )
    ...>

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 119a3bd92c50..0493a03ec3ed 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1795,12 +1795,6 @@ iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 		return ERR_PTR(ret);
 	}
 
-	/* RF-kill already asserted again... */
-	if (!cmd.resp_pkt) {
-		fw_status = ERR_PTR(-ERFKILL);
-		goto out_free_resp;
-	}
-
 	status_size = sizeof(*fw_status);
 
 	len = iwl_rx_packet_payload_len(cmd.resp_pkt);
@@ -1925,12 +1919,6 @@ iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
 		return ret;
 	}
 
-	/* RF-kill already asserted again... */
-	if (!cmd.resp_pkt) {
-		ret = -ERFKILL;
-		goto out_free_resp;
-	}
-
 	len = iwl_rx_packet_payload_len(cmd.resp_pkt);
 	if (len < sizeof(*query)) {
 		IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");