[CRYPTO]: crypto_free_tfm() callers no longer need to check for NULL
Since the patch to add a NULL short-circuit to crypto_free_tfm() went in,
there's no longer any need for callers of that function to check for NULL.
This patch removes the redundant NULL checks and also a few similar checks
for NULL before calls to kfree() that I ran into while doing the
crypto_free_tfm bits.
I've succesfuly compile tested this patch, and a kernel with the patch
applied boots and runs just fine.
When I posted the patch to LKML (and other lists/people on Cc) it drew the
following comments :
J. Bruce Fields commented
"I've no problem with the auth_gss or nfsv4 bits.--b."
Sridhar Samudrala said
"sctp change looks fine."
Herbert Xu signed off on the patch.
So, I guess this is ready to be dropped into -mm and eventually mainline.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index b31ffc5..1b5a09d 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -343,22 +343,14 @@
if (!esp)
return;
- if (esp->conf.tfm) {
- crypto_free_tfm(esp->conf.tfm);
- esp->conf.tfm = NULL;
- }
- if (esp->conf.ivec) {
- kfree(esp->conf.ivec);
- esp->conf.ivec = NULL;
- }
- if (esp->auth.tfm) {
- crypto_free_tfm(esp->auth.tfm);
- esp->auth.tfm = NULL;
- }
- if (esp->auth.work_icv) {
- kfree(esp->auth.work_icv);
- esp->auth.work_icv = NULL;
- }
+ crypto_free_tfm(esp->conf.tfm);
+ esp->conf.tfm = NULL;
+ kfree(esp->conf.ivec);
+ esp->conf.ivec = NULL;
+ crypto_free_tfm(esp->auth.tfm);
+ esp->auth.tfm = NULL;
+ kfree(esp->auth.work_icv);
+ esp->auth.work_icv = NULL;
kfree(esp);
}