[PATCH] crypto/drbg.c:remove unnecessary (void*) conversions

[Dong Chuanjian]

remove unnecessary void* type casting

Signed-off-by: Dong Chuanjian <chuanjian@xxxxxxxxxxxx>

diff --git a/crypto/drbg.c b/crypto/drbg.c
index 177983b6ae38..f41ec3088ecc 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1703,7 +1703,7 @@ static int drbg_init_hash_kernel(struct drbg_state *drbg)
 
 static int drbg_fini_hash_kernel(struct drbg_state *drbg)
 {
-	struct sdesc *sdesc = (struct sdesc *)drbg->priv_data;
+	struct sdesc *sdesc = drbg->priv_data;
 	if (sdesc) {
 		crypto_free_shash(sdesc->shash.tfm);
 		kfree_sensitive(sdesc);
@@ -1715,7 +1715,7 @@ static int drbg_fini_hash_kernel(struct drbg_state *drbg)
 static void drbg_kcapi_hmacsetkey(struct drbg_state *drbg,
 				  const unsigned char *key)
 {
-	struct sdesc *sdesc = (struct sdesc *)drbg->priv_data;
+	struct sdesc *sdesc = drbg->priv_data;
 
 	crypto_shash_setkey(sdesc->shash.tfm, key, drbg_statelen(drbg));
 }
@@ -1723,7 +1723,7 @@ static void drbg_kcapi_hmacsetkey(struct drbg_state *drbg,
 static int drbg_kcapi_hash(struct drbg_state *drbg, unsigned char *outval,
 			   const struct list_head *in)
 {
-	struct sdesc *sdesc = (struct sdesc *)drbg->priv_data;
+	struct sdesc *sdesc = drbg->priv_data;
 	struct drbg_string *input = NULL;
 
 	crypto_shash_init(&sdesc->shash);
@@ -1819,7 +1819,7 @@ static void drbg_kcapi_symsetkey(struct drbg_state *drbg,
 				 const unsigned char *key)
 {
 	struct crypto_cipher *tfm =
-		(struct crypto_cipher *)drbg->priv_data;
+		drbg->priv_data;
 
 	crypto_cipher_setkey(tfm, key, (drbg_keylen(drbg)));
 }
@@ -1828,7 +1828,7 @@ static int drbg_kcapi_sym(struct drbg_state *drbg, unsigned char *outval,
 			  const struct drbg_string *in)
 {
 	struct crypto_cipher *tfm =
-		(struct crypto_cipher *)drbg->priv_data;
+		drbg->priv_data;
 
 	/* there is only component in *in */
 	BUG_ON(in->len < drbg_blocklen(drbg));
-- 
2.18.2