crypto: camm/qi - Use ERR_CAST() to return error-valued pointer

Instead of directly casting and returning (void *) pointer, use ERR_CAST
to explicitly return an error-valued pointer. This makes the error handling
more explicit and improves code clarity.
Signed-off-by: Chen Yufan <chenyufan@vivo.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/caamalg_qi.c

@@ -961,7 +961,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
 
 	drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT);
 	if (IS_ERR(drv_ctx))
-		return (struct aead_edesc *)drv_ctx;
+		return ERR_CAST(drv_ctx);
 
 	/* allocate space for base edesc and hw desc commands, link tables */
 	edesc = qi_cache_alloc(flags);
@@ -1271,7 +1271,7 @@ static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
 
 	drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT);
 	if (IS_ERR(drv_ctx))
-		return (struct skcipher_edesc *)drv_ctx;
+		return ERR_CAST(drv_ctx);
 
 	src_nents = sg_nents_for_len(req->src, req->cryptlen);
 	if (unlikely(src_nents < 0)) {