From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 6 Jul 2017 22:40:37 +0000 (-0700)
Subject: mm/zswap.c: improve a size determination in zswap_frontswap_init()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=9cd1f701ce47599ddfb589afeb88b5513b6915bc;p=openwrt%2Fstaging%2Fblogic.git

mm/zswap.c: improve a size determination in zswap_frontswap_init()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding
size determination a bit safer according to the Linux coding style
convention.

Link: http://lkml.kernel.org/r/19f9da22-092b-f867-bdf6-f4dbad7ccf1f@users.sourceforge.net
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjenning@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/zswap.c b/mm/zswap.c
index 18d8e87119a6..a6e67633be03 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1156,7 +1156,7 @@ static void zswap_frontswap_init(unsigned type)
 {
 	struct zswap_tree *tree;
 
-	tree = kzalloc(sizeof(struct zswap_tree), GFP_KERNEL);
+	tree = kzalloc(sizeof(*tree), GFP_KERNEL);
 	if (!tree) {
 		pr_err("alloc failed, zswap disabled for swap type %d\n", type);
 		return;