On Mon, Jun 27, 2016 at 4:23 PM, Amitoj Kaur Chawla
[off-list ref] wrote:

pinctrl_register returns an ERR_PTR on error.

The Coccinelle semantic patch used to make this change is as follows:

@@
expression e,e1,e2;
@@

e = pinctrl_register(...)
... when != e = e1
if (
-   e == NULL
+   IS_ERR(e)
   ) {
     ...
     return
-      e2
+      PTR_ERR(e)
     ;
     }

Signed-off-by: Amitoj Kaur Chawla <redacted>

I already have a patch like this in my tree it seems.

But very nice that cocinelle is now finding this!

Yours,
Linus Walleij