From acb50a08d888183c7e31cfdd72401d59da8ec756 Mon Sep 17 00:00:00 2001
From: Wendal Chen <wendal1985@gmail.com>
Date: Sat, 4 Mar 2023 12:39:25 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20sm2=5Fpoint=5Ffrom=5Fx=E5=87=BD=E6=95=B0?=
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````
if ((y == 0x02 && sm2_bn_is_odd(_y)) || (y == 0x03) && !sm2_bn_is_odd(_y)) {
```

后半段的优先级应该加括号包起来
---
 src/sm2_alg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sm2_alg.c b/src/sm2_alg.c
index 1865eaf4..4eb24fad 100644
--- a/src/sm2_alg.c
+++ b/src/sm2_alg.c
@@ -1115,7 +1115,7 @@ int sm2_point_from_x(SM2_POINT *P, const uint8_t x[32], int y)
 		return -1;
 	}
 
-	if ((y == 0x02 && sm2_bn_is_odd(_y)) || (y == 0x03) && !sm2_bn_is_odd(_y)) {
+	if ((y == 0x02 && sm2_bn_is_odd(_y)) || ((y == 0x03) && !sm2_bn_is_odd(_y))) {
 		sm2_fp_neg(_y, _y);
 	}