atp870u: Improve unsupported chip detection

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index d0119f1..128613e 100644 (file)
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1252,6 +1252,11 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        unsigned char setupdata[2][16];
        int err;
 
+       if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 && pdev->revision < 2) {
+               dev_err(&pdev->dev, "ATP850S chips (AEC6710L/F cards) are not supported.\n");
+               return -ENODEV;
+       }
+
        err = pci_enable_device(pdev);
        if (err)
                goto fail;
@@ -1273,19 +1278,10 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        atpdev->pdev = pdev;
        pci_set_drvdata(pdev, atpdev);
 
-       /*
-        * It's probably easier to weed out some revisions like
-        * this than via the PCI device table
-        */
-       if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610) {
-               atpdev->chip_ver = pdev->revision;
-               if (atpdev->chip_ver < 2) {
-                       err = -ENODEV;
-                       goto unregister;
-               }
-       }
-
        switch (ent->device) {
+       case PCI_DEVICE_ID_ARTOP_AEC7610:
+               atpdev->chip_ver = pdev->revision;
+               break;
        case PCI_DEVICE_ID_ARTOP_AEC7612UW:
        case PCI_DEVICE_ID_ARTOP_AEC7612SUW:
        case ATP880_DEVID1: