[dm-devel] [PATCH V3 02/14] libmultipath: change malloc to calloc in print_foreign_topology

[lixiaokeng]

We check the return value of malloc in print_foreign_topology.

V1->V2: chanege malloc to calloc

Signed-off-by: Lixiaokeng <lixiaokeng at huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26 at huawei.com>
Signed-off-by: Linfeilong <linfeilong at huawei.com>
---
 libmultipath/foreign.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libmultipath/foreign.c b/libmultipath/foreign.c
index e8f61351..fce19347 100644
--- a/libmultipath/foreign.c
+++ b/libmultipath/foreign.c
@@ -544,8 +544,8 @@ void print_foreign_topology(int verbosity)
 	int buflen = MAX_LINE_LEN * MAX_LINES;
 	char *buf = NULL, *tmp = NULL;

-	buf = malloc(buflen);
-	buf[0] = '\0';
+	buf = calloc(1, buflen);
+
 	while (buf != NULL) {
 		char *c = buf;

--