AuxXxilium/linux_dsm_epyc7002
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[SPARC64]: Fix PCI IRQ probing regression.

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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>
This commit is contained in:
David S. Miller 2006-02-17 08:20:18 -08:00
parent 72aff53f1f
commit 101d5c18a9
1 changed files with 5 additions and 5 deletions
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10
arch/sparc64/kernel/pci_common.c
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@ -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++) {