re: Add WMI driver for controlling AlienFX features on some Alienware products

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Hello Mario Limonciello,

This is a semi-automatic email about new static checker warnings.

The patch d17a5ee12973: "Add WMI driver for controlling AlienFX
features on some Alienware products" from Apr 4, 2014, leads to the
following Smatch complaint:

drivers/platform/x86/alienware-wmi.c:551 alienware_wmi_exit()
	 warn: variable dereferenced before check 'platform_device' (see line 549)

drivers/platform/x86/alienware-wmi.c
   548	{
   549		alienware_zone_exit(platform_device);
                                    ^^^^^^^^^^^^^^^
   550		remove_hdmi(platform_device);
                            ^^^^^^^^^^^^^^^
   551		if (platform_device) {
                    ^^^^^^^^^^^^^^^
   552			platform_device_unregister(platform_device);
   553			platform_driver_unregister(&platform_driver);

regards,
dan carpenter
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