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[bluetooth-next,2/3] ieee802154: atusb: make sure we set a randaom extended address if fetching fails

Message ID 1481823616-13402-3-git-send-email-stefan@osg.samsung.com
State Accepted
Headers show

Commit Message

Stefan Schmidt Dec. 15, 2016, 5:40 p.m. UTC
In the unlikely case were the firmware is new enough but the actual USB command
still fails make sure we set a random address and return.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
---
 drivers/net/ieee802154/atusb.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
index fa3e8c3..67790f8 100644
--- a/drivers/net/ieee802154/atusb.c
+++ b/drivers/net/ieee802154/atusb.c
@@ -737,8 +737,11 @@  static int atusb_set_extended_addr(struct atusb *atusb)
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_EUI64_READ, ATUSB_REQ_FROM_DEV, 0, 0,
 				buffer, IEEE802154_EXTENDED_ADDR_LEN, 1000);
-	if (ret < 0)
-		dev_err(&usb_dev->dev, "failed to fetch extended address\n");
+	if (ret < 0) {
+		dev_err(&usb_dev->dev, "failed to fetch extended address, random address set\n");
+		ieee802154_random_extended_addr(&atusb->hw->phy->perm_extended_addr);
+		return ret;
+	}
 
 	memcpy(&extended_addr, buffer, IEEE802154_EXTENDED_ADDR_LEN);
 	/* Check if read address is not empty and the unicast bit is set correctly */