diff options
| author | Linas Vepstas <linas@austin.ibm.com> | 2007-11-03 07:29:01 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-11-08 14:15:32 +1100 |
| commit | b37ceefe7cfc56f27f03269206a53faedb8be9fd (patch) | |
| tree | 8915d732dd6b51de362ae9ae08625ffec43a30ab /arch | |
| parent | 2a50f144fc6081269468abf79e1907c6669bef22 (diff) | |
| download | linux-3.10-b37ceefe7cfc56f27f03269206a53faedb8be9fd.tar.gz linux-3.10-b37ceefe7cfc56f27f03269206a53faedb8be9fd.tar.bz2 linux-3.10-b37ceefe7cfc56f27f03269206a53faedb8be9fd.zip | |
[POWERPC] EEH: Avoid crash on null device
Bugfix: avoid crash if there's no PCI device for a given
openfirmware node.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 22322b35a0f..00cfb53d746 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -186,6 +186,11 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) n += scnprintf(buf+n, len-n, "cmd/stat:%x\n", cfg); printk(KERN_WARNING "EEH: PCI cmd/status register: %08x\n", cfg); + if (!dev) { + printk(KERN_WARNING "EEH: no PCI device for this of node\n"); + return n; + } + /* Gather bridge-specific registers */ if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) { rtas_read_config(pdn, PCI_SEC_STATUS, 2, &cfg); @@ -198,7 +203,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) } /* Dump out the PCI-X command and status regs */ - cap = pci_find_capability(pdn->pcidev, PCI_CAP_ID_PCIX); + cap = pci_find_capability(dev, PCI_CAP_ID_PCIX); if (cap) { rtas_read_config(pdn, cap, 4, &cfg); n += scnprintf(buf+n, len-n, "pcix-cmd:%x\n", cfg); @@ -210,7 +215,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) } /* If PCI-E capable, dump PCI-E cap 10, and the AER */ - cap = pci_find_capability(pdn->pcidev, PCI_CAP_ID_EXP); + cap = pci_find_capability(dev, PCI_CAP_ID_EXP); if (cap) { n += scnprintf(buf+n, len-n, "pci-e cap10:\n"); printk(KERN_WARNING @@ -222,7 +227,7 @@ static size_t gather_pci_data(struct pci_dn *pdn, char * buf, size_t len) printk(KERN_WARNING "EEH: PCI-E %02x: %08x\n", i, cfg); } - cap = pci_find_ext_capability(pdn->pcidev, PCI_EXT_CAP_ID_ERR); + cap = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); if (cap) { n += scnprintf(buf+n, len-n, "pci-e AER:\n"); printk(KERN_WARNING |