[PATCH] elf: Fix uninitialized variable for _dl_write

Shuo Wang wangshuo47@huawei.com
Thu Nov 12 09:44:47 GMT 2020


elf: Fix uninitialized variable for _dl_write

Variable ret in elf/dl-write.c is uninitialized, which should get return value from __writev.
---
 elf/dl-write.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/elf/dl-write.c b/elf/dl-write.c
index 7350aff003..9b741c8a8f 100644
--- a/elf/dl-write.c
+++ b/elf/dl-write.c
@@ -41,7 +41,7 @@ _dl_write (int fd, const void *buffer, size_t length)
   else
     {
       __rtld_lock_lock_recursive (GL(dl_load_lock));
-      __writev (fd, &iov, 1);
+      ret = __writev (fd, &iov, 1);
       if (ret < 0)
         ret = -errno;
       __rtld_lock_unlock_recursive (GL(dl_load_lock));
-- 
2.23.0


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