crypto: starfive - Skip unneeded fallback allocation

Skip sw fallback allocation if RSA module failed to get device handle.

Signed-off-by: Jia Jie Ho <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/starfive/jh7110-rsa.c

···
 {
 	struct starfive_cryp_ctx *ctx = akcipher_tfm_ctx(tfm);
 
+	ctx->cryp = starfive_cryp_find_dev(ctx);
+	if (!ctx->cryp)
+		return -ENODEV;
+
 	ctx->akcipher_fbk = crypto_alloc_akcipher("rsa-generic", 0, 0);
 	if (IS_ERR(ctx->akcipher_fbk))
 		return PTR_ERR(ctx->akcipher_fbk);
-
-	ctx->cryp = starfive_cryp_find_dev(ctx);
-	if (!ctx->cryp) {
-		crypto_free_akcipher(ctx->akcipher_fbk);
-		return -ENODEV;
-	}
 
 	akcipher_set_reqsize(tfm, sizeof(struct starfive_cryp_request_ctx) +
 			     sizeof(struct crypto_akcipher) + 32);