[PATCH] clk: imx: clk-imx8mm: fix memory leak issue in 'imx8mm_clocks_probe'

[Stephen Boyd]

Quoting Zhou Shide (2023-04-12 20:24:39)
> The function imx8mm_clocks_probe() has two main issues:
> - The of_iomap() function may cause a memory leak.
> - Memory allocated for 'clk_hw_data' may not be freed properly
> in some paths.
> 
> To fix these issues, this commit replaces the use of of_iomap()
> with devm_of_iomap() and replaces kzalloc() with devm_kzalloc().
> This ensures that all memory is properly managed and automatically
> freed when the device is removed.
> 
> In addition, when devm_of_iomap() allocates memory with an error,
> it will first jump to label "unregister_hws" and
> then return PTR_ ERR(base).
> 
> Fixes: 9c71f9ea35d7 ("clk: imx: imx8mm: Switch to clk_hw based API")
> Fixes: ba5625c3e272 ("clk: imx: Add clock driver support for imx8mm")
> Signed-off-by: Zhou Shide <u201911681 at hust.edu.cn>
> ---
> The issue is discovered by static analysis, and the patch is not tested yet.

And you're not coordinating with each other?