wifi: iwlwifi: replace ENOTSUPP with EOPNOTSUPP

ENOTSUPP isn't a standard error code, don't use it. Replace with
EOPNOTSUPP instead.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231219215605.a69f4347b5f8.I88429d5de8251287ec0b58ff26a588465b9049a5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 16a104d..edc8204 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1521,7 +1521,7 @@ static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
 
 	/* supporting only MQ RX */
 	if (!mvm->trans->trans_cfg->mq_rx_supported)
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	rxb._page = alloc_pages(GFP_ATOMIC, 0);
 	if (!rxb._page)