From e00364c5e4664024d7655e2ecef4ed450ca2f4df Mon Sep 17 00:00:00 2001
From: ZYH <lymz@foxmail.com>
Date: Fri, 12 Oct 2018 11:22:05 +0800
Subject: [PATCH] =?UTF-8?q?[Components][SDIO]=E4=BF=AE=E5=A4=8D=E8=84=8F?=
 =?UTF-8?q?=E5=80=BC=E8=B0=83=E7=94=A8?=
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---
 components/drivers/sdio/sdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/drivers/sdio/sdio.c b/components/drivers/sdio/sdio.c
index 7b38c3957..dc3ddc7e1 100644
--- a/components/drivers/sdio/sdio.c
+++ b/components/drivers/sdio/sdio.c
@@ -317,7 +317,7 @@ rt_uint8_t sdio_io_readb(struct rt_sdio_function *func,
                          rt_uint32_t              reg,
                          rt_int32_t              *err)
 {
-    rt_uint8_t data;
+    rt_uint8_t data = 0;
     rt_int32_t ret;
 
     ret = sdio_io_rw_direct(func->card, 0, func->num, reg, &data, 0);
-- 
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