android_kernel_motorola_sm6375/scripts
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Wen Yang da9cfb87a4 coccinelle: semantic code search for missing put_device()
The of_find_device_by_node() takes a reference to the underlying device
structure, we should release that reference.
The implementation of this semantic code search is:
In a function, for a local variable returned by calling
of_find_device_by_node(),
a, if it is released by a function such as
   put_device()/of_dev_put()/platform_device_put() after the last use,
   it is considered that there is no reference leak;
b, if it is passed back to the caller via
   dev_get_drvdata()/platform_get_drvdata()/get_device(), etc., the
   reference will be released in other functions, and the current function
   also considers that there is no reference leak;
c, for the rest of the situation, the current function should release the
   reference by calling put_device, this code search will report the
   corresponding error message.

By using this semantic code search, we have found some object reference leaks,
such as:
commit 11907e9d35 ("ASoC: fsl-asoc-card: fix object reference leaks in
fsl_asoc_card_probe")
commit a12085d139 ("mtd: rawnand: atmel: fix possible object reference leak")
commit 11493f2685 ("mtd: rawnand: jz4780: fix possible object reference leak")

There are still dozens of reference leaks in the current kernel code.

Further, for the case of b, the object returned to other functions may also
have a reference leak, we will continue to develop other cocci scripts to
further check the reference leak.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17 12:55:45 +09:00
..
atomic locking/atomics: Check atomic headers with sha1sum 2019-02-13 08:07:31 +01:00
basic kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS 2018-12-01 23:13:14 +09:00
coccinelle coccinelle: semantic code search for missing put_device() 2019-03-17 12:55:45 +09:00
dtc of: add dtc annotations functionality to dtx_diff 2019-02-28 11:40:48 -06:00
gcc-plugins increased structleak coverage 2019-03-09 09:06:15 -08:00
gdb Kbuild updates for v5.1 2019-03-10 17:48:21 -07:00
genksyms
kconfig Kconfig updates for v5.1 2019-03-13 10:06:28 -07:00
ksymoops
mod modpost: always show verbose warning for section mismatch 2019-03-14 02:39:09 +09:00
package kbuild: pkg: grep include/config/auto.conf instead of $KCONFIG_CONFIG 2019-03-14 02:39:13 +09:00
selinux genheaders: %-<width>s had been there since v6; %-*s - since v7 2018-12-10 03:40:11 -05:00
tracing scripts: Add Python 3 support to tracing/draw_functrace.py 2018-07-29 11:08:38 +09:00
.gitignore scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore 2018-12-22 00:37:52 +09:00
adjust_autoksyms.sh kbuild: source include/config/auto.conf instead of ${KCONFIG_CONFIG} 2019-03-14 02:39:11 +09:00
asn1_compiler.c ASN.1: Remove unnecessary shadowed local variable 2018-10-29 00:19:41 +09:00
bin2c.c kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
bloat-o-meter bloat-o-meter: ignore __addressable_ symbols 2018-12-28 12:11:44 -08:00
bootgraph.pl
bpf_helpers_doc.py
cc-can-link.sh bpfilter: check compiler capability in Kconfig 2018-06-28 13:36:39 +09:00
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl A fairly routine cycle for docs - lots of typo fixes, some new documents, 2019-03-09 09:56:17 -08:00
checkstack.pl scripts/checkstack.pl: dynamic stack growth for aarch64 2018-12-28 12:11:44 -08:00
checksyscalls.sh checksyscalls: fix up mq_timedreceive and stat exceptions 2019-02-19 21:27:53 +01:00
checkversion.pl
clang-version.sh kbuild: update comment block of scripts/clang-version.sh 2019-03-04 22:34:54 +09:00
cleanfile
cleanpatch
coccicheck coccicheck: return proper error code on fail 2018-08-14 08:58:56 +09:00
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh scripts/decode_stacktrace.sh: handle RIP address with segment 2019-03-05 21:07:13 -08:00
decodecode scripts/decodecode: set ARCH when running natively on arm/arm64 2018-12-28 12:11:44 -08:00
depmod.sh kbuild: modules_install: warn when missing System.map file 2018-09-09 09:14:07 +09:00
diffconfig
documentation-file-ref-check scripts/documentation-file-ref-check: ignore sched-pelt false positive 2018-07-02 11:25:00 -06:00
export_report.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux extract-vmlinux: Check for uncompressed image as fallback 2018-10-17 08:18:01 +02:00
extract_xc3028.pl
faddr2line scripts/faddr2line: fix location of start_kernel in comment 2018-11-18 10:15:09 -08:00
file-size.sh
find-unused-docs.sh
gcc-goto.sh jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
gcc-ld
gcc-plugin.sh
gcc-version.sh kbuild: clean up scripts/gcc-version.sh 2019-03-04 22:35:04 +09:00
gcc-x86_32-has-stack-protector.sh stack-protector: test compiler capability in Kconfig and drop AUTO mode 2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y 2018-06-25 23:21:13 +09:00
gen_compile_commands.py scripts: add a tool to produce a compile_commands.json file 2018-12-19 23:41:36 +09:00
gen_ksymdeps.sh kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS 2018-12-01 23:13:14 +09:00
get_dvb_firmware
get_maintainer.pl get_maintainer: allow option --mpath <directory> to read all files in <directory> 2018-08-22 10:52:48 -07:00
gfp-translate
headerdep.pl
headers.sh
headers_check.pl
headers_install.sh
insert-sys-cert.c
kallsyms.c Kbuild updates for v5.1 2019-03-10 17:48:21 -07:00
Kbuild.include kbuild: remove cc-version macro 2019-03-04 22:34:59 +09:00
Kconfig.include kbuild: clean up scripts/gcc-version.sh 2019-03-04 22:35:04 +09:00
kernel-doc kernel-doc: suppress 'not described' warnings for embedded struct fields 2019-01-16 15:04:01 -07:00
ld-version.sh
leaking_addresses.pl leaking_addresses: Completely remove --version flag 2019-03-07 08:53:18 +11:00
Lindent
link-vmlinux.sh kbuild: source include/config/auto.conf instead of ${KCONFIG_CONFIG} 2019-03-14 02:39:11 +09:00
Makefile scripts/gdb: do not descend into scripts/gdb from scripts 2019-02-27 21:40:09 +09:00
Makefile.asm-generic kbuild: generate asm-generic wrappers if mandatory headers are missing 2019-01-06 09:46:51 +09:00
Makefile.build kbuild: move archive command to scripts/Makefile.lib 2019-03-14 02:39:10 +09:00
Makefile.clean kbuild: remove deprecated host-progs variable 2018-08-09 21:51:17 +09:00
Makefile.dtbinst
Makefile.extrawarn Kbuild updates for v4.20 (2nd) 2018-11-03 10:47:33 -07:00
Makefile.gcc-plugins gcc-plugins: structleak: Generalize to all variable types 2019-03-04 09:29:41 -08:00
Makefile.headersinst kbuild: generate asm-generic wrappers if mandatory headers are missing 2019-01-06 09:46:51 +09:00
Makefile.host kbuild: skip 'addtree' and 'flags' magic for external module build 2019-01-28 09:11:17 +09:00
Makefile.kasan kasan: remove use after scope bugs detection. 2019-03-05 21:07:13 -08:00
Makefile.kcov kcov: test compiler capability in Kconfig and correct dependency 2018-06-11 09:14:08 +09:00
Makefile.lib kbuild: move archive command to scripts/Makefile.lib 2019-03-14 02:39:10 +09:00
Makefile.modbuiltin Kbuild: Makefile.modbuiltin: include auto.conf and tristate.conf mandatory 2018-08-03 00:47:00 +09:00
Makefile.modinst kbuild: remove duplicated comments about PHONY 2018-07-06 22:04:03 +09:00
Makefile.modpost modpost: always show verbose warning for section mismatch 2019-03-14 02:39:09 +09:00
Makefile.modsign kbuild: remove duplicated comments about PHONY 2018-07-06 22:04:03 +09:00
Makefile.ubsan lib/ubsan: remove null-pointer checks 2018-08-10 20:19:58 -07:00
makelst
markup_oops.pl
mkcompile_h kbuild: remove unnecessary in-subshell execution 2019-01-28 09:11:17 +09:00
mkmakefile kbuild: simplify command line creation in scripts/mkmakefile 2018-10-04 22:56:02 +09:00
mksysmap
mkuboot.sh
module-common.lds
namespace.pl
objdiff
parse-maintainers.pl
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names 2018-12-08 20:54:08 -05:00
recordmcount.h
recordmcount.pl scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names 2018-12-08 20:54:08 -05:00
setlocalversion scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks 2018-11-21 23:57:33 +09:00
show_delta
sign-file.c
sortextable.c
sortextable.h
spdxcheck-test.sh scripts: add spdxcheck.py self test 2018-12-28 12:11:44 -08:00
spdxcheck.py scripts/spdxcheck.py: fix C++ comment style detection 2019-02-22 08:47:05 -07:00
spelling.txt scripts/spelling.txt: add more spellings to spelling.txt 2019-03-07 18:31:59 -08:00
sphinx-pre-install
split-man.pl
stackdelta
stackusage
subarch.include selftests: add headers_install to lib.mk 2018-09-05 08:12:09 -06:00
tags.sh scripts/tags.sh: add more declarations 2018-12-28 12:11:44 -08:00
unifdef.c unifdef: use memcpy instead of strncpy 2018-11-30 14:45:01 -08:00
ver_linux ver_linux: Assign constant RE to variable name for clarity 2019-01-22 13:34:35 +01:00
xen-hypercalls.sh
xz_wrap.sh