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authorHerbert Xu <herbert@gondor.apana.org.au>2015-07-09 07:17:17 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-07-14 14:56:45 +0800
commitba75e15fa0c4db489ed0d0a9745f904a7d5e19cc (patch)
treeab170889cc4cf0ba9befb40b1a9d5fe8101792e7
parent319382a6970899f02f18da4b0083a6e55942456d (diff)
crypto: aead - Add type-safe function for freeing instances
This patch adds a type-safe function for freeing AEAD instances to struct aead_instance. This replaces the existing free function in struct crypto_template which does not know the type of the instance that it's freeing. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/aead.c13
-rw-r--r--include/crypto/internal/aead.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/crypto/aead.c b/crypto/aead.c
index 07bf99773548..8cd45a7eb7af 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -307,9 +307,22 @@ static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
seq_printf(m, "geniv : <none>\n");
}
+static void crypto_aead_free_instance(struct crypto_instance *inst)
+{
+ struct aead_instance *aead = aead_instance(inst);
+
+ if (!aead->free) {
+ inst->tmpl->free(inst);
+ return;
+ }
+
+ aead->free(aead);
+}
+
static const struct crypto_type crypto_new_aead_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_aead_init_tfm,
+ .free = crypto_aead_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_aead_show,
#endif
diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h
index c3942f4d6e9f..a292e960fb33 100644
--- a/include/crypto/internal/aead.h
+++ b/include/crypto/internal/aead.h
@@ -21,6 +21,7 @@
struct rtattr;
struct aead_instance {
+ void (*free)(struct aead_instance *inst);
union {
struct {
char head[offsetof(struct aead_alg, base)];

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