Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=22ad42033b7d2b3d7928fba9f89d1c7f8a3c9581
Commit: 22ad42033b7d2b3d7928fba9f89d1c7f8a3c9581
Parent: d215874460e7657b8e104de024140e0932690450
Author: Marcel Holtmann <[EMAIL PROTECTED]>
AuthorDate: Wed May 9 09:15:40 2007 +0200
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Thu May 10 23:45:05 2007 -0700
[Bluetooth] Fix NULL pointer dereference in HCI line discipline
Normally a serial Bluetooth device is opened, TIOSETD'ed to N_HCI line
discipline, HCIUARTSETPROTO'ed and finally closed. In case the device
fails to HCIUARTSETPROTO, closing it produces a NULL pointer dereference.
Signed-off-by: Ohad Ben-Cohen <[EMAIL PROTECTED]>
Signed-off-by: Marcel Holtmann <[EMAIL PROTECTED]>
---
drivers/bluetooth/hci_ldisc.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 75c1508..e8ae0d7 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -307,7 +307,9 @@ static void hci_uart_tty_close(struct tty_struct *tty)
if (hu) {
struct hci_dev *hdev = hu->hdev;
- hci_uart_close(hdev);
+
+ if (hdev)
+ hci_uart_close(hdev);
if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
hu->proto->close(hu);
-
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