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wlcore: fix runtime pm imbalance in wlcore_irq_locked 

When wlcore_fw_status() returns an error code, a pairing
runtime PM usage counter decrement is needed to keep the
counter balanced. It's the same for all error paths after
wlcore_fw_status().

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200522044906.29564-1-dinghao.liu@zju.edu.cn
This commit is contained in:
Dinghao Liu 2020-05-22 12:49:04 +08:00 committed by Kalle Valo
parent 7967af8de3
commit da74b6933b
1 changed files with 9 additions and 8 deletions
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17
drivers/net/wireless/ti/wlcore/main.c
View File

@ -548,7 +548,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
ret = wlcore_fw_status(wl, wl->fw_status);
if (ret < 0)
goto out;
goto err_ret;
wlcore_hw_tx_immediate_compl(wl);
@ -565,7 +565,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
ret = -EIO;
/* restarting the chip. ignore any other interrupt. */
goto out;
goto err_ret;
}
if (unlikely(intr & WL1271_ACX_SW_INTR_WATCHDOG)) {
@ -575,7 +575,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
ret = -EIO;
/* restarting the chip. ignore any other interrupt. */
goto out;
goto err_ret;
}
if (likely(intr & WL1271_ACX_INTR_DATA)) {
@ -583,7 +583,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
ret = wlcore_rx(wl, wl->fw_status);
if (ret < 0)
goto out;
goto err_ret;
/* Check if any tx blocks were freed */
spin_lock_irqsave(&wl->wl_lock, flags);
@ -596,7 +596,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
*/
ret = wlcore_tx_work_locked(wl);
if (ret < 0)
goto out;
goto err_ret;
} else {
spin_unlock_irqrestore(&wl->wl_lock, flags);
}
@ -604,7 +604,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
/* check for tx results */
ret = wlcore_hw_tx_delayed_compl(wl);
if (ret < 0)
goto out;
goto err_ret;
/* Make sure the deferred queues don't get too long */
defer_count = skb_queue_len(&wl->deferred_tx_queue) +
@ -617,14 +617,14 @@ static int wlcore_irq_locked(struct wl1271 *wl)
wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
ret = wl1271_event_handle(wl, 0);
if (ret < 0)
goto out;
goto err_ret;
}
if (intr & WL1271_ACX_INTR_EVENT_B) {
wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
ret = wl1271_event_handle(wl, 1);
if (ret < 0)
goto out;
goto err_ret;
}
if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
@ -635,6 +635,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
}
err_ret:
pm_runtime_mark_last_busy(wl->dev);
pm_runtime_put_autosuspend(wl->dev);