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net/tls: Removed redundant checks for non-NULL 

Removed checks against non-NULL before calling kfree_skb() and
crypto_free_aead(). These functions are safe to be called with NULL
as an argument.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vakul Garg 2018-07-24 16:54:27 +05:30 committed by David S. Miller
parent 990e35ecba
commit 201876b33c
1 changed files with 3 additions and 6 deletions
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9
net/tls/tls_sw.c
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@ -1047,8 +1047,7 @@ void tls_sw_free_resources_tx(struct sock *sk)
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_tx *ctx = tls_sw_ctx_tx(tls_ctx);
if (ctx->aead_send)
crypto_free_aead(ctx->aead_send);
crypto_free_aead(ctx->aead_send);
tls_free_both_sg(sk);
kfree(ctx);
@ -1060,10 +1059,8 @@ void tls_sw_release_resources_rx(struct sock *sk)
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
if (ctx->aead_recv) {
if (ctx->recv_pkt) {
kfree_skb(ctx->recv_pkt);
ctx->recv_pkt = NULL;
}
kfree_skb(ctx->recv_pkt);
ctx->recv_pkt = NULL;
crypto_free_aead(ctx->aead_recv);
strp_stop(&ctx->strp);
write_lock_bh(&sk->sk_callback_lock);