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Diffstat (limited to 'drivers/pci/pci-sysfs.c')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 0a2eeb82cebd..6c250eb214e8 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -756,6 +756,13 @@ static ssize_t pci_write_config(struct file *filp, struct kobject *kobj, if (ret) return ret; + if (resource_is_exclusive(&dev->driver_exclusive_resource, off, + count)) { + pci_warn_once(dev, "%s: Unexpected write to kernel-exclusive config offset %llx", + current->comm, off); + add_taint(TAINT_USER, LOCKDEP_STILL_OK); + } + if (off > dev->cfg_size) return 0; if (off + count > dev->cfg_size) { |