[PATCH v2 0/6] Small fio cleanups and fixes

[Ammar Faizi <ammarfaizi2@gnuweeb.org>]

From: Ammar Faizi <ammarfaizi2@gnuweeb.org>

Hi Jens,

This is patchset v2. There 6 patches in this series. It contains small
cleanups and fixes:

- Patch 1 is just a trivial indentation fix.
- Patch 2, 3 are to add `ENOMEM` case error handling.
- Patch 4 is to replace `malloc()` + `memset()` with `calloc()`.
  Also, add ENOMEM hanling.
- Patch 5 is just a small optimization for json.
- Patch 6 is to fix warning from clang-15 when compiling the
  autogenerated file lex.yy.c.

## Changelog
v2:
  - Call `free()` properly when failure (use goto to do this) in
    patch #3.

  - Fix `calloc()` placement in patch #4.

Link v1: https://lore.kernel.org/fio/20220426212044.78898-1-ammarfaizi2@gnuweeb.org/T/


Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
---

Ammar Faizi (6):
  backend: Fix indentation
  cgroup: Handle `ENOMEM` case on `malloc()` call
  stat: Handle `ENOMEM` case in `__show_run_stats()`
  engines/net: Replace `malloc()` + `memset()` with `calloc()`
  json: Change `if (!strlen(str))` to `if (!str[0])`
  Makefile: Suppress `-Wimplicit-fallthrough` when compiling `lex.yy`

 Makefile      |  6 +++++-
 backend.c     |  2 +-
 cgroup.c      |  4 ++++
 engines/net.c |  9 +++++----
 json.c        |  2 +-
 stat.c        | 30 ++++++++++++++++++++++--------
 6 files changed, 38 insertions(+), 15 deletions(-)


base-commit: 5f2d43188c2d65674aaba6280e2a87107e5d7099
-- 
Ammar Faizi