diff options
| author | Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> | 2012-01-11 10:09:58 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-02-14 05:01:39 +0100 |
| commit | 778a785f02ad846446e91dab49331bd7d853c514 (patch) | |
| tree | 4f8969fe08df41ced83f44ec9dd459ab10e72d69 /arch/powerpc/include/asm/ppc-pci.h | |
| parent | powerpc/pseries: Fix partition migration hang in stop_topology_update (diff) | |
| download | linux-778a785f02ad846446e91dab49331bd7d853c514.tar.xz linux-778a785f02ad846446e91dab49331bd7d853c514.zip | |
powerpc/pseries/eeh: Fix crash when error happens during device probe
EEH may happen during a PCI driver probe. If the driver is trying to
access some register in a loop, the EEH code will try to print the
driver name. But the driver pointer in struct pci_dev is not set until
probe returns successfully.
Use a function to test if the device and the driver pointer is NULL
before accessing the driver's name.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/ppc-pci.h')
| -rw-r--r-- | arch/powerpc/include/asm/ppc-pci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 43268f15004e..6d422979ebaf 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -142,6 +142,11 @@ static inline const char *eeh_pci_name(struct pci_dev *pdev) return pdev ? pci_name(pdev) : "<null>"; } +static inline const char *eeh_driver_name(struct pci_dev *pdev) +{ + return (pdev && pdev->driver) ? pdev->driver->name : "<null>"; +} + #endif /* CONFIG_EEH */ #else /* CONFIG_PCI */ |