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[Bluetooth] Fix double frees on error paths of btusb and bpa10x drivers 

The transfer buffer of an URB will be automatically freed when using
the URB_FREE_BUFFER transfer_flag. So the extra calls to kfree() will
cause a double free.

Reported-by: Justin Mattock <justinmattock@gmail.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann 2008-10-06 12:22:51 +02:00
parent 94aca1dac6
commit 36010ff678
2 changed files with 0 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/bluetooth/bpa10x.c
View File

@ -256,7 +256,6 @@ static inline int bpa10x_submit_intr_urb(struct hci_dev *hdev)
BT_ERR("%s urb %p submission failed (%d)",
hdev->name, urb, -err);
usb_unanchor_urb(urb);
kfree(buf);
}
usb_free_urb(urb);
@ -298,7 +297,6 @@ static inline int bpa10x_submit_bulk_urb(struct hci_dev *hdev)
BT_ERR("%s urb %p submission failed (%d)",
hdev->name, urb, -err);
usb_unanchor_urb(urb);
kfree(buf);
}
usb_free_urb(urb);

3
drivers/bluetooth/btusb.c
View File

@ -271,7 +271,6 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev)
BT_ERR("%s urb %p submission failed (%d)",
hdev->name, urb, -err);
usb_unanchor_urb(urb);
kfree(buf);
}
usb_free_urb(urb);
@ -354,7 +353,6 @@ static int btusb_submit_bulk_urb(struct hci_dev *hdev)
BT_ERR("%s urb %p submission failed (%d)",
hdev->name, urb, -err);
usb_unanchor_urb(urb);
kfree(buf);
}
usb_free_urb(urb);
@ -475,7 +473,6 @@ static int btusb_submit_isoc_urb(struct hci_dev *hdev)
BT_ERR("%s urb %p submission failed (%d)",
hdev->name, urb, -err);
usb_unanchor_urb(urb);
kfree(buf);
}
usb_free_urb(urb);