platform/x86: alienware-wmi: Correct a memory leak

commit ff0e9f2 upstream.

An ACPI buffer that was allocated was not being freed after use.

Signed-off-by: Mario Limonciello <[email protected]>
Cc: [email protected]
Signed-off-by: Darren Hart (VMware) <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Mario Limonciello

drivers/platform/x86/alienware-wmi.c

@@ -519,6 +519,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,
 		if (obj && obj->type == ACPI_TYPE_INTEGER)
 			*out_data = (u32) obj->integer.value;
 	}
+	kfree(output.pointer);
 	return status;
 
 }