RT-Thread / RT-Thread/rt-thread
[Bug] sdio_read_cis() 中部分 CIS 元组分支未释放节点，反复 SDIO 初始化/反初始化导致内存泄漏
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@Huoyanlifusu is already working on this.
Since Sep 5, 2026.
bug
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Description
RT-Thread Version
master(v5.2.2)
Affected area
Other / Not sure
Hardware/BSP vendor
Not applicable / Other
Architecture
Not applicable / Other
Board and hardware details
sdio
Develop Toolchain
RT-Thread Studio
Describe the bug
问题：反复执行 SDIO 初始化 / 反初始化时存在内存泄漏：每次调用 sdio_read_cis() 都会泄漏内存，且之后调用 sdio_free_cis() 也无法回收
原因：在 sdio.c 的 sdio_read_cis() 中，每轮循环都会为一个 CIS 元组分配节点，但在随后的 switch (tpl_code) 中，以下分支既没有 rt_free(curr) ，也没有将 curr 挂入 func->tuples 链表，只有 default 分支会把节点挂入 func->tuples 链表，从而由 sdio_free_cis() 统一释放。
Other additional context
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