Delyan Kratunov 522574fd78 bpftool: Explicit errno handling in skeletons ... Andrii noticed that since f97b8b9bd6 ("bpftool: Fix a bug in subskeleton code generation") the subskeleton code allows bpf_object__destroy_subskeleton to overwrite the errno that subskeleton__open would return with. While this is not currently an issue, let's make it future-proof. This patch explicitly tracks err in subskeleton__open and skeleton__create (i.e. calloc failure is explicitly ENOMEM) and ensures that errno is -err on the error return path. The skeleton code had to be changed since maps and progs codegen is shared with subskeletons. Fixes: f97b8b9bd6 ("bpftool: Fix a bug in subskeleton code generation") Signed-off-by: Delyan Kratunov <delyank@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/3b6bfbb770c79ae64d8de26c1c1bd9d53a4b85f8.camel@fb.com		2022-03-30 14:06:59 +02:00
..
bpftool	bpftool: Explicit errno handling in skeletons	2022-03-30 14:06:59 +02:00
resolve_btfids	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-02-03 17:36:16 -08:00
runqslower	tools/bpf: Rename 'struct event' to avoid naming conflict	2022-01-15 12:21:25 +11:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
bpf_asm.c	docs: networking: convert filter.txt to ReST	2020-04-28 14:39:46 -07:00
bpf_dbg.c	bpf: Simplify the calculation of variables	2021-03-04 19:24:53 -08:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y	tools, bpf_asm: Exit non-zero on errors	2021-02-26 22:53:50 +01:00
bpf_jit_disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 232	2019-06-19 17:09:06 +02:00
Makefile	tools: bpf: Fix error in 'make -C tools/ bpf_install'	2021-07-07 14:06:38 -07:00