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wifi: cfg80211: Avoid RCU debug splat in __cfg80211_bss_update error paths

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Replace rcu_dereference() with rcu_access_pointer() since we already
hold the lock and own the 'tmp' at this point. This is needed to avoid
suspicious rcu_dereference_check warnings in__cfg80211_bss_update error
paths.

Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://patch.msgid.link/20240904142021.3887360-1-quic_vjakkam@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Veerendranath Jakkam 2024-09-04 19:50:21 +05:30 committed by Johannes Berg
parent a26a5107bc
commit f54a1baee0
1 changed files with 2 additions and 2 deletions
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4
net/wireless/scan.c
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@ -2008,10 +2008,10 @@ __cfg80211_bss_update(struct cfg80211_registered_device *rdev,
return found;
free_ies:
ies = (void *)rcu_dereference(tmp->pub.beacon_ies);
ies = (void *)rcu_access_pointer(tmp->pub.beacon_ies);
if (ies)
kfree_rcu(ies, rcu_head);
ies = (void *)rcu_dereference(tmp->pub.proberesp_ies);
ies = (void *)rcu_access_pointer(tmp->pub.proberesp_ies);
if (ies)
kfree_rcu(ies, rcu_head);