Re: [PATCH] ALSA: pcm: use new array-copying-wrapper

[Takashi Iwai <tiwai@xxxxxxx>]

On Mon, 27 Jan 2025 17:06:55 +0100,
yangchenyuan wrote:
> 
> From: Chenyuan Yang <chenyuan0y@xxxxxxxxx>
> 
> This is found by our static analysis tool.
> 
> pcm_native.c utilizes memdup_user() to copy an array from userspace.
> 
> There is a new wrapper, specifically designed for copying arrays. Use
> this one instead.
> 
> This is similar to the 
> commit 3e91a38de1dc ("fbdev: viafb: use new array-copying-wrapper").
> 
> Fixes: 67616feda99e ("ALSA: pcm: Unify ioctl functions for playback and capture streams")

This use of Fixes tag is misleading: the original code is correct, per
se, and the original commit was 4.14, where it had no no
memdup_array_user() available (introduced since 6.7).

So I applied with the drop of Fixes tag.


thanks,

Takashi