fix: 修复卸载驱动时闪退

[jeffshuai]

修复卸载驱动时闪退

Log: 修复卸载驱动时闪退

Bug: https://pms.uniontech.com/bug-view-259851.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在slotRestoreProgress函数中，对mp_CurRestoreDriverInfo的检查应该在strDeatils不为空之前进行，以确保在显示进度详情之前不会尝试访问空指针。
• mp_CurRestoreDriverInfo的检查应该使用!= nullptr而不是== nullptr，以避免潜在的类型转换问题。

是否建议立即修改:

• 是

[myk1343]

[是否满足兼容性要求] Y
[是否满足commit提交规范] Y
[是否满足编码规范] Y
[Review结论] Pass
[Fail原因] N/A

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jeffshuai, lzwind

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[jeffshuai]

/merge