wifi: rtlwifi: remove unused check_buddy_priv
[ Upstream commit 2fdac64c3c35858aa8ac5caa70b232e03456e120 ] Commit 2461c7d6 ("rtlwifi: Update header file") introduced a global list of private data structures. Later on, commit 26634c4b ("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: 26634c4b ("rtlwifi Modify existing bits to match vendor version 2013.02.07") Signed-off-by:Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Signed-off-by:
Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20241206173713.3222187-2-cascardo@igalia.com Signed-off-by:
Sasha Levin <sashal@kernel.org>
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