RE: [PATCH 1/4] wifi: rtlwifi: remove unused check_buddy_priv

[Ping-Ke Shih <pkshih@realtek.com>]

Thadeu Lima de Souza Cascardo <cascardo@igalia.com> wrote:
> Commit 2461c7d60f9f ("rtlwifi: Update header file") introduced a global
> list of private data structures.
> 
> Later on, commit 26634c4b1868 ("rtlwifi Modify existing bits to match
> vendor version 2013.02.07") started adding the private data to that list at
> probe time and added a hook, check_buddy_priv to find the private data from
> a similar device.
> 
> However, that function was never used.
> 
> Besides, though there is a lock for that list, it is never used. And when
> the probe fails, the private data is never removed from the list. This
> would cause a second probe to access freed memory.
> 
> Remove the unused hook, structures and members, which will prevent the
> potential race condition on the list and its corruption during a second
> probe when probe fails.
> 
> Fixes: 26634c4b1868 ("rtlwifi Modify existing bits to match vendor version 2013.02.07")

This is a cleanup patch, so I don't think we need a strong Fixes tag.