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Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()

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[ 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: b39910bb54 ("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>
This commit is contained in:
Max Chou
2024-12-31 14:57:19 +08:00
committed by Greg Kroah-Hartman
parent df2f2d9199
commit 1158ad8e8a
1 changed files with 3 additions and 1 deletions
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drivers/bluetooth/btrtl.c
+3 -1
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@@ -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;