From f850a2dd339f2a4dd83ec5223dba8daa9279d42b Mon Sep 17 00:00:00 2001
From: tangyuxin <462747508@qq.com>
Date: Tue, 26 Jun 2018 11:09:13 +0800
Subject: [components][drivers]sdio 给局部指针变量赋初值,修复潜在问题
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---
 components/drivers/sdio/mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'components/drivers')

diff --git a/components/drivers/sdio/mmc.c b/components/drivers/sdio/mmc.c
index e537c7dd3b..138d9565a1 100644
--- a/components/drivers/sdio/mmc.c
+++ b/components/drivers/sdio/mmc.c
@@ -412,12 +412,12 @@ static rt_err_t mmc_set_card_addr(struct rt_mmcsd_host *host, rt_uint32_t rca)
 static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
                                      rt_uint32_t           ocr)
 {
-    struct rt_mmcsd_card *card;
     rt_int32_t err;
     rt_uint32_t resp[4];
     rt_uint32_t rocr;
     rt_uint32_t max_data_rate;
     rt_uint8_t *ext_csd = RT_NULL;
+    struct rt_mmcsd_card *card = RT_NULL;
 
     mmcsd_go_idle(host);
     
-- 
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