diff options
| -rw-r--r-- | src/device/smbus_ops.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/device/smbus_ops.c b/src/device/smbus_ops.c index 184a06ad6c..f4b1355d28 100644 --- a/src/device/smbus_ops.c +++ b/src/device/smbus_ops.c @@ -29,8 +29,17 @@ struct bus *get_pbus_smbus(device_t dev) { struct bus *pbus = dev->bus; - while (pbus && pbus->dev && !ops_smbus_bus(pbus)) - pbus = pbus->dev->bus; + while (pbus && pbus->dev && !ops_smbus_bus(pbus)) { + if (pbus->dev->bus != pbus) { + pbus = pbus->dev->bus; + } + else { + printk(BIOS_WARNING, + "%s Find SMBus bus operations: unable to proceed\n", + dev_path(dev)); + break; + } + } if (!pbus || !pbus->dev || !pbus->dev->ops || !pbus->dev->ops->ops_smbus_bus) { |