hostfs: use kmalloc instead of kzalloc

The inode info structure is zeroed at allocation with kzalloc, and then
all but one of the fields (including the largest, vfs_inode) are
initialised explicitly. Switch to using kmalloc and initialise the
remaining field too.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/hostfs/hostfs_kern.c

@@ -228,10 +228,11 @@ static struct inode *hostfs_alloc_inode(struct super_block *sb)
 {
 	struct hostfs_inode_info *hi;
 
-	hi = kzalloc(sizeof(*hi), GFP_KERNEL);
+	hi = kmalloc(sizeof(*hi), GFP_KERNEL);
 	if (hi == NULL)
 		return NULL;
 	hi->fd = -1;
+	hi->mode = 0;
 	inode_init_once(&hi->vfs_inode);
 	return &hi->vfs_inode;
 }