Re: [PATCH] fix ptr_ret.cocci warnings

From: Daniel Thompson
Date: Mon Apr 24 2017 - 07:27:09 EST


On 24/04/17 11:57, Lee Jones wrote:
On Mon, 17 Apr 2017, Olimpiu Dejeu wrote:

On Tue, Mar 21, 2017 at 11:07 AM, Daniel Thompson <
daniel.thompson@xxxxxxxxxx> wrote:

On 21/03/17 14:58, Olimpiu Dejeu wrote:

On Fri, Mar 17, 2017 at 10:48 AM, kbuild test robot <lkp@xxxxxxxxx>
wrote:

drivers/video/backlight/arcxcnn_bl.c:183:1-3: WARNING: PTR_ERR_OR_ZERO
can be used


Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

CC: Olimpiu Dejeu <olimpiu@xxxxxxxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---

arcxcnn_bl.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/video/backlight/arcxcnn_bl.c
+++ b/drivers/video/backlight/arcxcnn_bl.c
@@ -180,10 +180,7 @@ static int arcxcnn_backlight_register(st

lp->bl = devm_backlight_device_register(lp->dev, name, lp->dev,
lp,
&arcxcnn_bl_ops, props);
- if (IS_ERR(lp->bl))
- return PTR_ERR(lp->bl);
-
- return 0;
+ return PTR_ERR_OR_ZERO(lp->bl);
}

static void arcxcnn_parse_dt(struct arcxcnn *lp)


Acked-by: Olimpiu Dejeu <olimpiu@xxxxxxxxxxxxxx>


Glad you approve! Could you apply this change and re-post the patch
series? Thanks.


Daniel.


Applied change, re-posted series on March 21st. No sure what next. Please
advise. Thanks.

Yes you did.

Daniel, do you see v9?

Yep. All fine at my end... it has my Reviewed-by: which is an even more emphatic statement than my Acked-by: ;-) .

I think from this point on I think I'll start posting
"[vX-is-still-]Acked-by:" replies so you don't have to worry about whether I've seen new versions.


FYI, if this happens again, it's best to wait a couple of weeks then
send the patch again like "[RESEND v9] ..." to gain attention.

RESENDs are a good way to go. Also, if there are questions about the code its better to reply to the code rather than the side discussion.


Daniel.