coccinelle: devm_free: reduce false positives

 x = devm_ioport_map(...)

)

@safe depends on context || org || report exists@

expression x;

position p;

@@

(

 x = kmalloc(...)

|

 x = kvasprintf(...)

|

 x = kasprintf(...)

|

 x = kzalloc(...)

|

 x = kmalloc_array(...)

|

 x = kcalloc(...)

|

 x = kstrdup(...)

|

 x = kmemdup(...)

|

 x = get_free_pages(...)

|

 x = request_irq(...)

|

 x = ioremap(...)

|

 x = ioremap_nocache(...)

|

 x = ioport_map(...)

)

...

(

 kfree@p(x)

|

 kzfree@p(x)

|

 __krealloc@p(x, ...)

|

 krealloc@p(x, ...)

|

 free_pages@p(x, ...)

|

 free_page@p(x)

|

 free_irq@p(x)

|

 iounmap@p(x)

|

 ioport_unmap@p(x)

)

@pb@

expression r.x;

position p;

position p != safe.p;

@@

(