[SPARC64]: Fix PCI IRQ probing regression.

If the top-level cnode had multi entries in it's "reg"
property, we'd fail.  The buffer wasn't large enough in
such cases.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index f910196..1448294 100644 (file)
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -675,7 +675,7 @@ static int __init pci_intmap_match(struct pci_dev *pdev, unsigned int *interrupt
 {
        struct pcidev_cookie *dev_pcp = pdev->sysdata;
        struct pci_pbm_info *pbm = dev_pcp->pbm;
-       struct linux_prom_pci_registers reg;
+       struct linux_prom_pci_registers reg[PROMREG_MAX];
        unsigned int hi, mid, lo, irq;
        int i, cnode, plen;
 
@@ -683,7 +683,7 @@ static int __init pci_intmap_match(struct pci_dev *pdev, unsigned int *interrupt
        if (cnode == pbm->prom_node)
                goto success;
 
-       plen = prom_getproperty(cnode, "reg", (char *) &reg, sizeof(reg));
+       plen = prom_getproperty(cnode, "reg", (char *) reg, sizeof(reg));
        if (plen <= 0 ||
            (plen % sizeof(struct linux_prom_pci_registers)) != 0) {
                printk("%s: OBP node %x reg property has bad len %d\n",
@@ -691,9 +691,9 @@ static int __init pci_intmap_match(struct pci_dev *pdev, unsigned int *interrupt
                goto fail;
        }
 
-       hi   = reg.phys_hi & pbm->pbm_intmask.phys_hi;
-       mid  = reg.phys_mid & pbm->pbm_intmask.phys_mid;
-       lo   = reg.phys_lo & pbm->pbm_intmask.phys_lo;
+       hi   = reg[0].phys_hi & pbm->pbm_intmask.phys_hi;
+       mid  = reg[0].phys_mid & pbm->pbm_intmask.phys_mid;
+       lo   = reg[0].phys_lo & pbm->pbm_intmask.phys_lo;
        irq  = *interrupt & pbm->pbm_intmask.interrupt;
 
        for (i = 0; i < pbm->num_pbm_intmap; i++) {