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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-24 07:33:56 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-24 07:56:31 +0200 |
| commit | e892d2d40445a14a19530a2be8c489b87bcd7c19 (patch) | |
| tree | b5f7838680af98f0905bab60a39cad722e63e61b | |
| parent | bpf, doc: update list of architectures that do eBPF JIT (diff) | |
| download | linux-e892d2d40445a14a19530a2be8c489b87bcd7c19.tar.xz linux-e892d2d40445a14a19530a2be8c489b87bcd7c19.zip | |
esp: Fix misplaced spin_unlock_bh.
A recent commit moved esp_alloc_tmp() out of a lock
protected region, but forgot to remove the unlock from
the error path. This patch removes the forgotten unlock.
While at it, remove some unneeded error assignments too.
Fixes: fca11ebde3f0 ("esp4: Reorganize esp_output")
Fixes: 383d0350f2cc ("esp6: Reorganize esp_output")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
| -rw-r--r-- | net/ipv4/esp4.c | 6 | ||||
| -rw-r--r-- | net/ipv6/esp6.c | 6 |
2 files changed, 2 insertions, 10 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 7e501adb5042..7f2caf71212b 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -356,11 +356,8 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info * ivlen = crypto_aead_ivsize(aead); tmp = esp_alloc_tmp(aead, esp->nfrags + 2, extralen); - if (!tmp) { - spin_unlock_bh(&x->lock); - err = -ENOMEM; + if (!tmp) goto error; - } extra = esp_tmp_extra(tmp); iv = esp_tmp_iv(aead, tmp, extralen); @@ -389,7 +386,6 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info * spin_lock_bh(&x->lock); if (unlikely(!skb_page_frag_refill(allocsize, pfrag, GFP_ATOMIC))) { spin_unlock_bh(&x->lock); - err = -ENOMEM; goto error; } diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index 8b55abf1c45b..1fe99ba8066c 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -330,11 +330,8 @@ int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info ivlen = crypto_aead_ivsize(aead); tmp = esp_alloc_tmp(aead, esp->nfrags + 2, seqhilen); - if (!tmp) { - spin_unlock_bh(&x->lock); - err = -ENOMEM; + if (!tmp) goto error; - } seqhi = esp_tmp_seqhi(tmp); iv = esp_tmp_iv(aead, tmp, seqhilen); @@ -362,7 +359,6 @@ int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info spin_lock_bh(&x->lock); if (unlikely(!skb_page_frag_refill(allocsize, pfrag, GFP_ATOMIC))) { spin_unlock_bh(&x->lock); - err = -ENOMEM; goto error; } |