linux-kernel - [PATCH] wifi: wlcore: fix unbalanced pm

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Message-Id: <20241107181531.1774550-1-andreas@kemnade.info>
Date: Thu,  7 Nov 2024 19:15:31 +0100
From: Andreas Kemnade <andreas@...nade.info>
To: kvalo@...nel.org,
	rmk+kernel@...linux.org.uk,
	johannes.berg@...el.com,
	andreas@...nade.info,
	leitao@...ian.org,
	emmanuel.grumbach@...el.com,
	linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] wifi: wlcore: fix unbalanced pm_runtime calls

If firmware boot failes, runtime pm is put too often:
[12092.708099] wlcore: ERROR firmware boot failed despite 3 retries
[12092.708099] wl18xx_driver wl18xx.1.auto: Runtime PM usage count underflow!
Fix that by redirecting all error gotos before runtime_get so that runtime is not put.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 drivers/net/wireless/ti/wlcore/main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 0c77b8524160d..98c830b665e38 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2612,13 +2612,13 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 	if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) ||
 	    test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)) {
 		ret = -EBUSY;
-		goto out;
+		goto out_unlock;
 	}
 
 
 	ret = wl12xx_init_vif_data(wl, vif);
 	if (ret < 0)
-		goto out;
+		goto out_unlock;
 
 	wlvif->wl = wl;
 	role_type = wl12xx_get_role_type(wl, wlvif);
@@ -2629,7 +2629,7 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 
 	ret = wlcore_allocate_hw_queue_base(wl, wlvif);
 	if (ret < 0)
-		goto out;
+		goto out_unlock;
 
 	/*
 	 * TODO: after the nvs issue will be solved, move this block
@@ -2644,7 +2644,7 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 
 		ret = wl12xx_init_fw(wl);
 		if (ret < 0)
-			goto out;
+			goto out_unlock;
 	}
 
 	/*
-- 
2.39.2