This patch series addresses several issues in the uacce:
1.Fix cdev handling in register and remove paths.
2.Fix sysfs file creation conditions.
3.Add error reporting for unsupported mremap operations.
4.Ensuring safe queue release with proper state management.

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Changes in v5:
- There is no memory leak issue when cdev_device_add fails, but it is necessary
  to check a flag to avoid calling cdev_device_del during abnormal exit.
- Link to v4: https://lore.kernel.org/all/20251022021149.1771168-1-huangchenghai2@huawei.com/

Changes in v4:
- Revert the interception of sysfs creation for isolate_strategy.
- Link to v3: https://lore.kernel.org/all/20251021135003.786588-1-huangchenghai2@huawei.com/

Changes in v3:
- Move the checks for the 'isolate_strategy_show' and
  'isolate_strategy_store' functions to their respective call sites.
- Use kobject_put to release the cdev memory instead of modifying
  cdev to be a static structure member.
- Link to v2: https://lore.kernel.org/all/20250916144811.1799687-1-huangchenghai2@huawei.com/

Changes in v2:
- Use cdev_init to allocate cdev memory to ensure that memory leaks
  are avoided.
- Supplement the reason for intercepting the remapping operation.
- Add "cc: stable@vger.kernel.org" to paths with fixed.
- Link to v1: https://lore.kernel.org/all/20250822103904.3776304-1-huangchenghai2@huawei.com/

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Chenghai Huang (2):
  uacce: fix isolate sysfs check condition
  uacce: ensure safe queue release with state management

Wenkai Lin (1):
  uacce: fix cdev handling in register and remove paths

Yang Shen (1):
  uacce: implement mremap in uacce_vm_ops to return -EPERM

 drivers/misc/uacce/uacce.c | 50 +++++++++++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 9 deletions(-)

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2.33.0