[PATCH net] net: hns3: clean up a return in hclge_tm_bp_setup()

[PATCH net] net: hns3: clean up a return in hclge_tm_bp_setup()

[Dan Carpenter]

Smatch complains that "ret" might be uninitialized if we don't enter
the loop.  We do always enter the loop so it's a false positive, but
it's cleaner to just return a literal zero and that silences the
warning as well.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 15f69fa86323..e8495f58a1a8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -1373,7 +1373,7 @@ static int hclge_tm_bp_setup(struct hclge_dev *hdev)
 			return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 int hclge_pause_setup_hw(struct hclge_dev *hdev, bool init)
-- 
2.28.0

Re: [PATCH net] net: hns3: clean up a return in hclge_tm_bp_setup()

[Yunsheng Lin]

On 2020/10/23 19:22, Dan Carpenter wrote:
> Smatch complains that "ret" might be uninitialized if we don't enter
> the loop.  We do always enter the loop so it's a false positive, but
> it's cleaner to just return a literal zero and that silences the
> warning as well.

Thanks for the clean up. Minor comment below:
Perhap it makes sense to limit ret scope within the for loop after
returning zero.

> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
> index 15f69fa86323..e8495f58a1a8 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
> @@ -1373,7 +1373,7 @@ static int hclge_tm_bp_setup(struct hclge_dev *hdev)
>  			return ret;
>  	}
>  
> -	return ret;
> +	return 0;
>  }
>  
>  int hclge_pause_setup_hw(struct hclge_dev *hdev, bool init)
> 

Re: [PATCH net] net: hns3: clean up a return in hclge_tm_bp_setup()

[Dan Carpenter]

On Mon, Oct 26, 2020 at 11:18:16AM +0800, Yunsheng Lin wrote:
> On 2020/10/23 19:22, Dan Carpenter wrote:
> > Smatch complains that "ret" might be uninitialized if we don't enter
> > the loop.  We do always enter the loop so it's a false positive, but
> > it's cleaner to just return a literal zero and that silences the
> > warning as well.
> 
> Thanks for the clean up. Minor comment below:
> Perhap it makes sense to limit ret scope within the for loop after
> returning zero.
> 

It's not really normal to limit ret scope...  I think it's better to
leave it as-is.

regards,
dan carpenter

Re: [PATCH net] net: hns3: clean up a return in hclge_tm_bp_setup()

[Jakub Kicinski]

On Fri, 23 Oct 2020 14:22:12 +0300 Dan Carpenter wrote:
> Smatch complains that "ret" might be uninitialized if we don't enter
> the loop.  We do always enter the loop so it's a false positive, but
> it's cleaner to just return a literal zero and that silences the
> warning as well.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied, thanks!