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From 3f426c96895556bb49adfa52f3aeafdedb2d02e7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= <mirq-linux@rere.qmqm.pl>
Date: Tue, 13 Jun 2017 18:02:03 +0200
Subject: [PATCH] brcmfmac: initialize oob irq data before request_irq()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This fixes spin-forever in irq handler when IRQ is already asserted
at request_irq() time.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -107,12 +107,14 @@ int brcmf_sdiod_intr_register(struct brc
int ret = 0;
u8 data;
u32 addr, gpiocontrol;
- unsigned long flags;
pdata = &sdiodev->settings->bus.sdio;
if (pdata->oob_irq_supported) {
brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
pdata->oob_irq_nr);
+ spin_lock_init(&sdiodev->irq_en_lock);
+ sdiodev->irq_en = true;
+
ret = request_irq(pdata->oob_irq_nr, brcmf_sdiod_oob_irqhandler,
pdata->oob_irq_flags, "brcmf_oob_intr",
&sdiodev->func[1]->dev);
@@ -121,10 +123,6 @@ int brcmf_sdiod_intr_register(struct brc
return ret;
}
sdiodev->oob_irq_requested = true;
- spin_lock_init(&sdiodev->irq_en_lock);
- spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
- sdiodev->irq_en = true;
- spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
ret = enable_irq_wake(pdata->oob_irq_nr);
if (ret != 0) {
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