[JFFS2] replace kmalloc+memset with kzalloc

Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: David Woodhouse <[e-mail]>

fs/jffs2/fs.c

···
 	if (ret)
 		return ret;
 
-	c->inocache_list = kmalloc(INOCACHE_HASHSIZE * sizeof(struct jffs2_inode_cache *), GFP_KERNEL);
+	c->inocache_list = kcalloc(INOCACHE_HASHSIZE, sizeof(struct jffs2_inode_cache *), GFP_KERNEL);
 	if (!c->inocache_list) {
 		ret = -ENOMEM;
 		goto out_wbuf;
 	}
-	memset(c->inocache_list, 0, INOCACHE_HASHSIZE * sizeof(struct jffs2_inode_cache *));
 
 	jffs2_init_xattr_subsystem(c);
 

fs/jffs2/readinode.c

···
 int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
 {
 	struct jffs2_raw_inode n;
-	struct jffs2_inode_info *f = kmalloc(sizeof(*f), GFP_KERNEL);
+	struct jffs2_inode_info *f = kzalloc(sizeof(*f), GFP_KERNEL);
 	int ret;
 
 	if (!f)
 		return -ENOMEM;
 
-	memset(f, 0, sizeof(*f));
 	init_MUTEX_LOCKED(&f->sem);
 	f->inocache = ic;
 

fs/jffs2/scan.c

···
 	}
 
 	if (jffs2_sum_active()) {
-		s = kmalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
+		s = kzalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
 		if (!s) {
 			JFFS2_WARNING("Can't allocate memory for summary\n");
 			return -ENOMEM;
 		}
-		memset(s, 0, sizeof(struct jffs2_summary));
 	}
 
 	for (i=0; i<c->nr_blocks; i++) {

fs/jffs2/summary.c

···
 
 int jffs2_sum_init(struct jffs2_sb_info *c)
 {
-	c->summary = kmalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
+	c->summary = kzalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
 
 	if (!c->summary) {
 		JFFS2_WARNING("Can't allocate memory for summary information!\n");
 		return -ENOMEM;
 	}
-
-	memset(c->summary, 0, sizeof(struct jffs2_summary));
 
 	c->summary->sum_buf = vmalloc(c->sector_size);