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authorTariq Toukan <tariqt@nvidia.com>2022-07-14 10:07:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-07-21 22:20:13 +0300
commitc713de1d80a5d7035dc7f667b485bded83b4e74a (patch)
tree98c5a45f658ddd09d07a03e46bba8864fd8bb5af
parenteb58fd350a851b5cda9f4c9a2cefb15c7ccf33f3 (diff)
downloadlinux-c713de1d80a5d7035dc7f667b485bded83b4e74a.tar.xz
net/tls: Check for errors in tls_device_init
[ Upstream commit 3d8c51b25a235e283e37750943bbf356ef187230 ] Add missing error checks in tls_device_init. Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure") Reported-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220714070754.1428-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--include/net/tls.h4
-rw-r--r--net/tls/tls_device.c4
-rw-r--r--net/tls/tls_main.c7
3 files changed, 10 insertions, 5 deletions
diff --git a/include/net/tls.h b/include/net/tls.h
index 745b3bc6ce91..d9cb597cab46 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -707,7 +707,7 @@ int tls_sw_fallback_init(struct sock *sk,
struct tls_crypto_info *crypto_info);
#ifdef CONFIG_TLS_DEVICE
-void tls_device_init(void);
+int tls_device_init(void);
void tls_device_cleanup(void);
void tls_device_sk_destruct(struct sock *sk);
int tls_set_device_offload(struct sock *sk, struct tls_context *ctx);
@@ -727,7 +727,7 @@ static inline bool tls_is_sk_rx_device_offloaded(struct sock *sk)
return tls_get_ctx(sk)->rx_conf == TLS_HW;
}
#else
-static inline void tls_device_init(void) {}
+static inline int tls_device_init(void) { return 0; }
static inline void tls_device_cleanup(void) {}
static inline int
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index 3c82286e5bcc..6ae2ce411b4b 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -1390,9 +1390,9 @@ static struct notifier_block tls_dev_notifier = {
.notifier_call = tls_dev_event,
};
-void __init tls_device_init(void)
+int __init tls_device_init(void)
{
- register_netdevice_notifier(&tls_dev_notifier);
+ return register_netdevice_notifier(&tls_dev_notifier);
}
void __exit tls_device_cleanup(void)
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 58d22d6b86ae..e537085b184f 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -905,7 +905,12 @@ static int __init tls_register(void)
if (err)
return err;
- tls_device_init();
+ err = tls_device_init();
+ if (err) {
+ unregister_pernet_subsys(&tls_proc_ops);
+ return err;
+ }
+
tcp_register_ulp(&tcp_tls_ulp_ops);
return 0;