Function bcm_get_resources() defined in drivers/bluetooth/hci_bcm.c calls devm_clk_get() which may return ERR_PTR(-ENOMEM). However, bcm_get_resources() misses the return value check of devm_clk_get(). Codes related to this bug are shown as follows.

drivers/bluetooth/hci_bcm.c:
  906  		return 0;
  907  
  908: 	dev->clk = devm_clk_get(dev->dev, NULL);
  909  
  910  	dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
  911						     GPIOD_OUT_LOW);