[Bug 200519] New: Missing check of the return value of devm_clk_get() in function bcm_get_resources()

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=200519

            Bug ID: 200519
           Summary: Missing check of the return value of devm_clk_get() in
                    function bcm_get_resources()
           Product: Drivers
           Version: 2.5
    Kernel Version: v4.18-rc4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@xxxxxxxxxxxxxxx
          Reporter: jasonwood2031@xxxxxxxxx
        Regression: No

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);

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