From b38cd3b42fba66cc538edb9cf77e07881f43f8e2 Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Fri, 24 Dec 2021 10:53:18 +0800 Subject: Bluetooth: hci_bcm: Check for error irq For the possible failure of the platform_get_irq(), the returned irq could be error number and will finally cause the failure of the request_irq(). Consider that platform_get_irq() can now in certain cases return -EPROBE_DEFER, and the consequences of letting request_irq() effectively convert that into -EINVAL, even at probe time rather than later on. So it might be better to check just now. Fixes: 0395ffc1ee05 ("Bluetooth: hci_bcm: Add PM for BCM devices") Signed-off-by: Jiasheng Jiang Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_bcm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/bluetooth/hci_bcm.c') diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index 7852abf15ddf..d634a27bc850 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -1188,7 +1188,12 @@ static int bcm_probe(struct platform_device *pdev) return -ENOMEM; dev->dev = &pdev->dev; - dev->irq = platform_get_irq(pdev, 0); + + ret = platform_get_irq(pdev, 0); + if (ret < 0) + return ret; + + dev->irq = ret; /* Initialize routing field to an unused value */ dev->pcm_int_params[0] = 0xff; -- cgit v1.2.3