]> asedeno.scripts.mit.edu Git - linux.git/commitdiff
uio_mf624: Refactor memory info initialization
authorMichal Sojka <sojkam1@fel.cvut.cz>
Thu, 16 Mar 2017 13:50:09 +0000 (14:50 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 8 Apr 2017 16:13:28 +0000 (18:13 +0200)
No functional changes. Move initialization of struct uio_mem to a
function. This will allow the next commit to change the initialization
code at a single place rather that at three different places.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/uio/uio_mf624.c

index d1f95a1567bba0a3f598538d5e11dca8308b7f82..8f30fa1af2abc1177c9386290ececf2338f4c84f 100644 (file)
@@ -127,6 +127,20 @@ static int mf624_irqcontrol(struct uio_info *info, s32 irq_on)
        return 0;
 }
 
+static int mf624_setup_mem(struct pci_dev *dev, int bar, struct uio_mem *mem, const char *name)
+{
+       mem->name = name;
+       mem->addr = pci_resource_start(dev, bar);
+       if (!mem->addr)
+               return -ENODEV;
+       mem->size = pci_resource_len(dev, bar);
+       mem->memtype = UIO_MEM_PHYS;
+       mem->internal_addr = pci_ioremap_bar(dev, bar);
+       if (!mem->internal_addr)
+               return -ENODEV;
+       return 0;
+}
+
 static int mf624_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
        struct uio_info *info;
@@ -147,37 +161,15 @@ static int mf624_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
        /* Note: Datasheet says device uses BAR0, BAR1, BAR2 -- do not trust it */
 
        /* BAR0 */
-       info->mem[0].name = "PCI chipset, interrupts, status "
-                       "bits, special functions";
-       info->mem[0].addr = pci_resource_start(dev, 0);
-       if (!info->mem[0].addr)
+       if (mf624_setup_mem(dev, 0, &info->mem[0], "PCI chipset, interrupts, status "
+                           "bits, special functions"))
                goto out_release;
-       info->mem[0].size = pci_resource_len(dev, 0);
-       info->mem[0].memtype = UIO_MEM_PHYS;
-       info->mem[0].internal_addr = pci_ioremap_bar(dev, 0);
-       if (!info->mem[0].internal_addr)
-               goto out_release;
-
        /* BAR2 */
-       info->mem[1].name = "ADC, DAC, DIO";
-       info->mem[1].addr = pci_resource_start(dev, 2);
-       if (!info->mem[1].addr)
-               goto out_unmap0;
-       info->mem[1].size = pci_resource_len(dev, 2);
-       info->mem[1].memtype = UIO_MEM_PHYS;
-       info->mem[1].internal_addr = pci_ioremap_bar(dev, 2);
-       if (!info->mem[1].internal_addr)
+       if (mf624_setup_mem(dev, 2, &info->mem[1], "ADC, DAC, DIO"))
                goto out_unmap0;
 
        /* BAR4 */
-       info->mem[2].name = "Counter/timer chip";
-       info->mem[2].addr = pci_resource_start(dev, 4);
-       if (!info->mem[2].addr)
-               goto out_unmap1;
-       info->mem[2].size = pci_resource_len(dev, 4);
-       info->mem[2].memtype = UIO_MEM_PHYS;
-       info->mem[2].internal_addr = pci_ioremap_bar(dev, 4);
-       if (!info->mem[2].internal_addr)
+       if (mf624_setup_mem(dev, 4, &info->mem[2], "Counter/timer chip"))
                goto out_unmap1;
 
        info->irq = dev->irq;