net: hns3: remove rebundant line for hclge_dbg_dump_tm_pg()

mainline inclusion
from mainline-master
commit 40975e74
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40975e749daa

----------------------------------------------------------------------

Return value judgment should follow the function call, so remove line
between them.
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c

@@ -782,7 +782,6 @@ static int hclge_dbg_dump_tm_pg(struct hclge_dev *hdev, char *buf, int len)
 
 	data_str = kcalloc(ARRAY_SIZE(tm_pg_items),
 			   HCLGE_DBG_DATA_STR_LEN, GFP_KERNEL);
-
 	if (!data_str)
 		return -ENOMEM;