system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-21 11:38:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Bluetooth: btbcm: Drop upper nibble version check from btbcm_initialize()

Browse source 
btbcm_initialize() must either return an error; or fill the passed in
fw_name, otherwise we end up passing uninitialized stack memory to
request_firmware().

Since we have a fallback hw_name of "BCM" not having a known version
in the subver field does not matter, drop the check so that we always
fill the passed in fw_name.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Hans de Goede 2020-04-17 19:15:25 +02:00 committed by Marcel Holtmann
parent 44dd5efc97
commit 3fef10ec32
1 changed files with 0 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/bluetooth/btbcm.c
View file

@ -440,10 +440,6 @@ int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len,
return err;
}
/* Upper nibble of rev should be between 0 and 3? */
if (((rev & 0xf000) >> 12) > 3)
return 0;
bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
bcm_uart_subver_table;