Remove warnings from clang --analyze

src/asn1.c

@@ -1535,7 +1535,7 @@ int asn1_time_from_str(int utc_time, time_t *timestamp, const char *str)
 	day	= val(p[0]) * 10 + val(p[1]); p += 2;
 	hour	= val(p[0]) * 10 + val(p[1]); p += 2;
 	minute	= val(p[0]) * 10 + val(p[1]); p += 2;
-	second	= val(p[0]) * 10 + val(p[1]); p += 2;
+	second	= val(p[0]) * 10 + val(p[1]);
 
 	if (year < 1970
 		|| month < 1 || month > 12

src/cms.c

@@ -1011,7 +1011,7 @@ int cms_signed_data_print(FILE *fp, int fmt, int ind, const char *label, const u
 	cms_content_info_print(fp, fmt, ind, "contentInfo", p, len);
 	if ((ret = asn1_implicit_set_from_der(0, &p, &len, &d, &dlen)) < 0) goto err;
 	if (ret) x509_certs_print(fp, fmt, ind, "certificates", p, len);
-	if ((ret = asn1_implicit_set_from_der(1, &p, &len, &d, &dlen)) < 0) goto err;
+	if (asn1_implicit_set_from_der(1, &p, &len, &d, &dlen) < 0) goto err;
 	if (asn1_set_from_der(&p, &len, &d, &dlen) != 1) goto err;
 	cms_signer_infos_print(fp, fmt, ind, "signerInfos", p, len);
 	if (asn1_length_is_zero(dlen) != 1) goto err;
@@ -1857,11 +1857,11 @@ int cms_signed_and_enveloped_data_decipher_from_der(
 	const uint8_t *extra_crls, size_t extra_crls_len,
 	const uint8_t **in, size_t *inlen)
 {
-	int ret;
+	int ret = 0;
 	int version;
 	const uint8_t *rcpt_infos;
 	size_t rcpt_infos_len;
-	int digest_algors[4];
+	int digest_algors[4] = {0};
 	size_t digest_algors_cnt;
 	const uint8_t *enced_content_info;
 	size_t enced_content_info_len;

src/sm4_cfb.c

@@ -124,7 +124,6 @@ int sm4_cfb_encrypt_update(SM4_CFB_CTX *ctx,
 		sm4_cfb_encrypt(&ctx->sm4_key, ctx->sbytes, ctx->iv, in, len, out);
 		in += len;
 		inlen -= len;
-		out += len;
 		*outlen += len;
 	}
 	if (inlen) {
@@ -214,7 +213,6 @@ int sm4_cfb_decrypt_update(SM4_CFB_CTX *ctx,
 		sm4_cfb_decrypt(&ctx->sm4_key, ctx->sbytes, ctx->iv, in, len, out);
 		in += len;
 		inlen -= len;
-		out += len;
 		*outlen += len;
 	}
 	if (inlen) {

src/sm4_ecb.c

@@ -65,7 +65,6 @@ int sm4_ecb_encrypt_update(SM4_ECB_CTX *ctx,
 		sm4_encrypt_blocks(&ctx->sm4_key, in, nblocks, out);
 		in += len;
 		inlen -= len;
-		out += len;
 		*outlen += len;
 	}
 	if (inlen) {

src/sm4_ofb.c

@@ -82,7 +82,6 @@ int sm4_ofb_encrypt_update(SM4_OFB_CTX *ctx,
 		sm4_ofb_encrypt(&ctx->sm4_key, ctx->iv, in, len, out);
 		in += len;
 		inlen -= len;
-		out += len;
 		*outlen += len;
 	}
 	if (inlen) {