[PATCH] ath10k: Cleanup ath10k_mac_register() error handling

[Jeff Johnson]

The logic in the error-handling path of ath10k_mac_register() is
divergent from the logic in ath10k_mac_unregister().  Update the
ath10k_mac_register() error handling logic to align with the
ath10k_mac_unregister() logic.

Signed-off-by: Jeff Johnson <jjohnson at qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 79490ad..a37aad3c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -7301,7 +7301,7 @@ int ath10k_mac_register(struct ath10k *ar)
 			    ath10k_reg_notifier);
 	if (ret) {
 		ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
-		goto err_free;
+		goto err_dfs_detector_exit;
 	}
 
 	ar->hw->wiphy->cipher_suites = cipher_suites;
@@ -7310,7 +7310,7 @@ int ath10k_mac_register(struct ath10k *ar)
 	ret = ieee80211_register_hw(ar->hw);
 	if (ret) {
 		ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
-		goto err_free;
+		goto err_dfs_detector_exit;
 	}
 
 	if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
@@ -7324,10 +7324,16 @@ int ath10k_mac_register(struct ath10k *ar)
 
 err_unregister:
 	ieee80211_unregister_hw(ar->hw);
+
+err_dfs_detector_exit:
+	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
+		ar->dfs_detector->exit(ar->dfs_detector);
+
 err_free:
 	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
 	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
 
+	SET_IEEE80211_DEV(ar->hw, NULL);
 	return ret;
 }
 
-- 
1.8.5.2