From ad2babc6596ba4f500454a4eaa607f3b49fcbcbe Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 7 Aug 2024 17:41:31 +0100 Subject: [PATCH 1218/1350] Bluetooth: hci_sync: Fix crash on NULL parent Although later functions can handle a NULL fwnode, fwnode can't handle being passed a NULL pointer. See: https://github.com/raspberrypi/linux/issues/6305 Signed-off-by: Phil Elwell --- net/bluetooth/hci_sync.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -4865,7 +4865,8 @@ static const struct { */ static int hci_dev_setup_sync(struct hci_dev *hdev) { - struct fwnode_handle *fwnode = dev_fwnode(hdev->dev.parent); + struct fwnode_handle *fwnode = + hdev->dev.parent ? dev_fwnode(hdev->dev.parent) : NULL; int ret = 0; bool invalid_bdaddr; size_t i;