From 93d26aeab54cc91119760bc4f1f22bff9a987d70 Mon Sep 17 00:00:00 2001 From: David Arcari Date: Thu, 13 Oct 2016 11:30:45 +0200 Subject: [PATCH] HID: i2c-hid: exit if the IRQ is not valid When i2c-core doesn't find the IRQ associated to the GPIO because the gpiochip is not available, it assigns -EPROBE_DEFER to the irq. We need to bail out there and on any other error in an IRQ. Signed-off-by: David Arcari Signed-off-by: Benjamin Tissoires Reviewed-by: Mika Westerberg Signed-off-by: Jiri Kosina --- drivers/hid/i2c-hid/i2c-hid.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 4cd606c0d89c..fe6b4e0eab4a 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -956,6 +956,13 @@ static int i2c_hid_probe(struct i2c_client *client, return -EINVAL; } + if (client->irq < 0) { + if (client->irq != -EPROBE_DEFER) + dev_err(&client->dev, + "HID over i2c doesn't have a valid IRQ\n"); + return client->irq; + } + ihid = kzalloc(sizeof(struct i2c_hid), GFP_KERNEL); if (!ihid) return -ENOMEM; -- 2.20.1