crypto: hisilicon/sec - fix for resource leak

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7BANJ
CVE: NA

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The hisi_acc_sg_buf_unmap function is not executed
before return ret, causing resource leakage.
Signed-off-by: NWenkai Lin <linwenkai6@hisilicon.com>
Signed-off-by: NJiangShui Yang <yangjiangshui@h-partners.com>

drivers/crypto/hisilicon/sec2/sec_crypto.c

@@ -984,6 +984,7 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
 		ret = sec_aead_mac_init(a_req);
 		if (unlikely(ret)) {
 			dev_err(dev, "fail to init mac data for ICV!\n");
+			hisi_acc_sg_buf_unmap(dev, src, req->in);
 			return ret;
 		}
 	}