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ddbridge: fix CONFIG_PCI_MSI #ifdef'ery (fixes failing build w/o MSI), fix "warning: ‘stat’ may be used uninitialized in this function

[-Wmaybe-uninitialized]" in ddb_irq_msi()
This commit is contained in:
Daniel Scheller 2017-01-21 17:53:47 +01:00
parent 1f77192d62
commit 1ae4a55c9d

View File

@ -111,11 +111,11 @@ static void __devexit ddb_remove(struct pci_dev *pdev)
#define __devinitdata
#endif
static int __devinit ddb_irq_msi(struct ddb *dev, int nr)
#ifdef CONFIG_PCI_MSI
static void __devinit ddb_irq_msi(struct ddb *dev, int nr)
{
int stat;
#ifdef CONFIG_PCI_MSI
if (msi && pci_msi_enabled()) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0))
stat = pci_enable_msi_range(dev->pdev, 1, nr);
@ -139,8 +139,8 @@ static int __devinit ddb_irq_msi(struct ddb *dev, int nr)
pr_info("DDBridge: MSI not available.\n");
#endif
}
return stat;
}
#endif
static int __devinit ddb_irq_init2(struct ddb *dev)
{
@ -158,9 +158,11 @@ static int __devinit ddb_irq_init2(struct ddb *dev)
ddbwritel(dev, 0x00000000, INTERRUPT_V2_ENABLE_6);
ddbwritel(dev, 0x00000000, INTERRUPT_V2_ENABLE_7);
#ifdef CONFIG_PCI_MSI
ddb_irq_msi(dev, 1);
if (dev->msi)
irq_flag = 0;
#endif
stat = request_irq(dev->pdev->irq, irq_handler_v2,
irq_flag, "ddbridge", (void *) dev);
@ -195,6 +197,7 @@ static int __devinit ddb_irq_init(struct ddb *dev)
ddbwritel(dev, 0x00000000, MSI6_ENABLE);
ddbwritel(dev, 0x00000000, MSI7_ENABLE);
#ifdef CONFIG_PCI_MSI
ddb_irq_msi(dev, 2);
if (dev->msi)