Thread (7 messages) 7 messages, 2 authors, 2020-08-27

Re: [PATCH 1/2] usb typec: mt6360: Add support for mt6360 Type-C driver

From: 啟原黃 <hidden>
Date: 2020-08-27 01:12:01
Also in: linux-arm-kernel, linux-mediatek, linux-usb, lkml

Guenter Roeck [off-list ref] 於 2020年8月27日 週四 上午9:02寫道:
On 8/26/20 5:59 PM, 啟原黃 wrote:
[ ... ]
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+static int mt6360_tcpc_remove(struct platform_device *pdev)
+{
+     struct mt6360_tcpc_info *mti = platform_get_drvdata(pdev);
+
+     tcpci_unregister_port(mti->tcpci);
That leaves interrupts enabled, which might be racy
because interrupts are still enabled here.
M..., yes, it will cause the race condition during module remove.
I'll add disable_irq before tcpci unregister to prevent it.
Or just set TCPC_ALERT_MASK to 0, as in tcpci.c.
Both are right, Thx. I'll choose one.

BTW, it seems enum typec_cc_status is used by tcpci.h.
If I don't include tcpm.h, it will raise a warning during the compile time.
Guenter
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