1 // SPDX-License-Identifier: GPL-2.0
2 /// Find missing put_device for every of_find_device_by_node.
4 // Confidence: Moderate
5 // Copyright: (C) 2018-2019 Wen Yang, ZTE.
7 // Options: --no-includes --include-headers
13 local idexpression id;
19 id = of_find_device_by_node@p1(x)
21 if (id == NULL || ...) { ... return ...; }
22 ... when != put_device(&id->dev)
23 when != platform_device_put(id)
24 when != of_dev_put(id)
25 when != if (id) { ... put_device(&id->dev) ... }
27 when != e1 = (T)(&id->dev)
28 when != e1 = get_device(&id->dev)
29 when != e1 = (T1)platform_get_drvdata(id)
33 | (T2)dev_get_drvdata(&id->dev)
34 | (T3)platform_get_drvdata(id)
40 @script:python depends on report@
45 coccilib.report.print_report(p2[0],
46 "ERROR: missing put_device; call of_find_device_by_node on line "
48 + ", but without a corresponding object release within this function.")
50 @script:python depends on org@
55 cocci.print_main("of_find_device_by_node", p1)
56 cocci.print_secs("needed put_device", p2)