Miscellaneous fixes for pci subsystem

Changes in v3:
- Check *ppos before assign it to pos.
- Link to v2: https://lore.kernel.org/linux-pci/20251224092721.2034529-1-duziming2@huawei.com/

Changes in v2:
- Correct grammer and indentation.
- Remove unrelated stack traces from the commit message.
- Modify the handling of pos by adding a non-negative check to ensure
  that the input value is valid.
- Use the existing IS_ALIGNED macro and ensure that after modification,
  other cases still retuen -EINVAL as before.
- Link to v1: https://lore.kernel.org/linux-pci/20251216083912.758219-1-duziming2@huawei.com/

Yongqiang Liu (2):
  PCI/sysfs: Prohibit unaligned access to I/O port on non-x86
  PCI: Prevent overflow in proc_bus_pci_write()

Ziming Du (1):
  PCI/sysfs: Fix null pointer dereference during hotplug

 drivers/pci/pci-sysfs.c | 11 +++++++++++
 drivers/pci/proc.c      |  6 +++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

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2.43.0