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net: use check_net()

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Don't directly acess the namespace count. There's even a dedicated
helper for this.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-09-18 12:11:54 +02:00
parent 83914de1c1
commit dc41b844da
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1 changed files with 1 additions and 1 deletions
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2
net/core/net_namespace.c
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@ -315,7 +315,7 @@ int peernet2id_alloc(struct net *net, struct net *peer, gfp_t gfp)
{
int id;
if (refcount_read(&net->ns.count) == 0)
if (!check_net(net))
return NETNSA_NSID_NOT_ASSIGNED;
spin_lock(&net->nsid_lock);