platform/x86: intel-vbtn: Fix return value check in check_acpi_dev()

In the function check_acpi_dev(), if it fails to create
platform device, the return value is ERR_PTR() or NULL.
Thus it must use IS_ERR_OR_NULL() to check return value.

Fixes: 332e0812 ("intel-vbtn: new driver for Intel Virtual Button")
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NLu Wei <luwei32@huawei.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/intel-vbtn.c

@@ -299,7 +299,7 @@ check_acpi_dev(acpi_handle handle, u32 lvl, void *context, void **rv)
 		return AE_OK;
 
 	if (acpi_match_device_ids(dev, ids) == 0)
-		if (acpi_create_platform_device(dev, NULL))
+		if (!IS_ERR_OR_NULL(acpi_create_platform_device(dev, NULL)))
 			dev_info(&dev->dev,
 				 "intel-vbtn: created platform device\n");