From 3a658ee32c1fbf6a17a86c0fad1cd592d01d411f Mon Sep 17 00:00:00 2001
From: "chao.an" <anchao@xiaomi.com>
Date: Sat, 27 Feb 2021 13:39:47 +0800
Subject: [PATCH] mm/circbuf: fix compile warning

circbuf/circbuf.c:133:14: warning: 'len' may be used uninitialized in this function [-Wmaybe-uninitialized]
  133 |   circ->head = len;
      |   ~~~~~~~~~~~^~~~~
circbuf/circbuf.c:106:10: note: 'len' was declared here
  106 |   size_t len;
      |          ^~~

Change-Id: I60e42b88e98838f5654d84b70f109a4df5a7ff26
Signed-off-by: chao.an <anchao@xiaomi.com>
---
 mm/circbuf/circbuf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/circbuf/circbuf.c b/mm/circbuf/circbuf.c
index c4d16e90309..0912e524e71 100644
--- a/mm/circbuf/circbuf.c
+++ b/mm/circbuf/circbuf.c
@@ -103,7 +103,7 @@ int circbuf_init(FAR struct circbuf_s *circ, FAR void *base, size_t bytes)
 int circbuf_resize(FAR struct circbuf_s *circ, size_t bytes)
 {
   FAR void *tmp = NULL;
-  size_t len;
+  size_t len = 0;
 
   DEBUGASSERT(circ);
   DEBUGASSERT(!circ->external);