[PATCH 1/6] e2fsck: set s->len=0 if malloc() fails in alloc_string()

[zhanchengbin <zhanchengbin1@xxxxxxxxxx>]

In alloc_string(), when malloc fails, len in the
string structure should be 0.

Signed-off-by: zhanchengbin <zhanchengbin1@xxxxxxxxxx>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx>
---
 e2fsck/logfile.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/e2fsck/logfile.c b/e2fsck/logfile.c
index 63e9a12f..f2227ad5 100644
--- a/e2fsck/logfile.c
+++ b/e2fsck/logfile.c
@@ -32,6 +32,8 @@ static void alloc_string(struct string *s, int len)
 {
     s->s = malloc(len);
 /* e2fsck_allocate_memory(ctx, len, "logfile name"); */
+    if (s->s == NULL)
+        s->len = 0;
     s->len = len;
     s->end = 0;
 }
--
2.23.0