Merge branch 'for-4.19/intel-ish' into for-linus

Device-specific fixes for hid-intel-ish

drivers/hid/intel-ish-hid/ipc/ipc.c

@@ -907,8 +907,9 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev)
 	struct ishtp_device *dev;
 	int	i;
 
-	dev = kzalloc(sizeof(struct ishtp_device) + sizeof(struct ish_hw),
-		GFP_KERNEL);
+	dev = devm_kzalloc(&pdev->dev,
+			   sizeof(struct ishtp_device) + sizeof(struct ish_hw),
+			   GFP_KERNEL);
 	if (!dev)
 		return NULL;
 
@@ -925,7 +926,9 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev)
 	for (i = 0; i < IPC_TX_FIFO_SIZE; ++i) {
 		struct wr_msg_ctl_info	*tx_buf;
 
-		tx_buf = kzalloc(sizeof(struct wr_msg_ctl_info), GFP_KERNEL);
+		tx_buf = devm_kzalloc(&pdev->dev,
+				      sizeof(struct wr_msg_ctl_info),
+				      GFP_KERNEL);
 		if (!tx_buf) {
 			/*
 			 * IPC buffers may be limited or not available

drivers/hid/intel-ish-hid/ipc/pci-ish.c

@@ -95,6 +95,13 @@ static int ish_init(struct ishtp_device *dev)
 	return 0;
 }
 
+static const struct pci_device_id ish_invalid_pci_ids[] = {
+	/* Mehlow platform special pci ids */
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xA309)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xA30A)},
+	{}
+};
+
 /**
  * ish_probe() - PCI driver probe callback
  * @pdev:	pci device
@@ -110,6 +117,10 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct ish_hw *hw;
 	int	ret;
 
+	/* Check for invalid platforms for ISH support */
+	if (pci_dev_present(ish_invalid_pci_ids))
+		return -ENODEV;
+
 	/* enable pci dev */
 	ret = pci_enable_device(pdev);
 	if (ret) {
@@ -172,7 +183,6 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	free_irq(pdev->irq, dev);
 free_device:
 	pci_iounmap(pdev, hw->mem_addr);
-	kfree(dev);
 release_regions:
 	pci_release_regions(pdev);
 disable_device:
@@ -202,7 +212,6 @@ static void ish_remove(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	pci_clear_master(pdev);
 	pci_disable_device(pdev);
-	kfree(ishtp_dev);
 }
 
 static struct device __maybe_unused *ish_resume_device;