[PATCH 1/5] sctp: Use kmalloc_array() in sctp_init()

SF Markus Elfring
2017-05-22T16:37:19Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 22 May 2017 17:20:11 +0200

* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
net/sctp/protocol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 989a900383b5..2b1a6215bd2f 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1442,6 +1442,6 @@ static __init int sctp_init(void)

/* Allocate and initialize the endpoint hash table. */
sctp_ep_hashsize = 64;
- sctp_ep_hashtable - kmalloc(64 * sizeof(struct sctp_hashbucket), GFP_KERNEL);
+ sctp_ep_hashtable = kmalloc_array(64, sizeof(*sctp_ep_hashtable),
+ GFP_KERNEL);
if (!sctp_ep_hashtable) {
--
2.13.0