[NET]: proto_unregister: fix sleeping while atomic proto_unregister holds a lock while calling kmem_cache_destroy, which can sleep. Noticed by Daniele Orlandi . Signed-off-by: Patrick McHardy --- commit d68b08edb26dfb58d18ab6c555d011572f9115a6 tree 1d14cf91ca5db6878b6af3953f85a34a6fe12a91 parent 591bd554f58b7d363167760a606d2a84696772da author Patrick McHardy Wed, 07 Sep 2005 01:35:19 +0200 committer Patrick McHardy Wed, 07 Sep 2005 01:35:19 +0200 net/core/sock.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/net/core/sock.c b/net/core/sock.c --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1529,6 +1529,8 @@ EXPORT_SYMBOL(proto_register); void proto_unregister(struct proto *prot) { write_lock(&proto_list_lock); + list_del(&prot->node); + write_unlock(&proto_list_lock); if (prot->slab != NULL) { kmem_cache_destroy(prot->slab); @@ -1550,9 +1552,6 @@ void proto_unregister(struct proto *prot kfree(name); prot->twsk_slab = NULL; } - - list_del(&prot->node); - write_unlock(&proto_list_lock); } EXPORT_SYMBOL(proto_unregister);