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| author | Max Chou <max.chou@realtek.com> | 2024-12-31 14:57:19 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-08 09:57:23 +0100 |
| commit | 1158ad8e8abb361d4b2aaa010c9af74de20ab82b (patch) | |
| tree | 8fa16c2fb3ea4cb0d3b066fbceb99ae8bb30b73c /drivers/bluetooth | |
| parent | df2f2d9199e61819cca5da0121dfa4d4cb57000f (diff) | |
| download | linux-1158ad8e8abb361d4b2aaa010c9af74de20ab82b.tar.gz linux-1158ad8e8abb361d4b2aaa010c9af74de20ab82b.tar.bz2 linux-1158ad8e8abb361d4b2aaa010c9af74de20ab82b.zip | |
Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()
[ Upstream commit 3c15082f3567032d196e8760753373332508c2ca ]
If insert an USB dongle which chip is not maintained in ic_id_table, it
will hit the NULL point accessed. Add a null point check to avoid the
Kernel Oops.
Fixes: b39910bb54d9 ("Bluetooth: Populate hci_set_hw_info for Intel and Realtek")
Reviewed-by: Alex Lu <alex_lu@realsil.com.cn>
Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btrtl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c index 0bcb44cf7b31..0a6ca6dfb948 100644 --- a/drivers/bluetooth/btrtl.c +++ b/drivers/bluetooth/btrtl.c @@ -1351,12 +1351,14 @@ int btrtl_setup_realtek(struct hci_dev *hdev) btrtl_set_quirks(hdev, btrtl_dev); - hci_set_hw_info(hdev, + if (btrtl_dev->ic_info) { + hci_set_hw_info(hdev, "RTL lmp_subver=%u hci_rev=%u hci_ver=%u hci_bus=%u", btrtl_dev->ic_info->lmp_subver, btrtl_dev->ic_info->hci_rev, btrtl_dev->ic_info->hci_ver, btrtl_dev->ic_info->hci_bus); + } btrtl_free(btrtl_dev); return ret; |