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bpf: Use ERR_CAST instead of ERR_PTR(PTR_ERR(...))

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Intel linux test robot reported a warning that ERR_CAST can be used
for error pointer casting instead of more-complicated/rarely-used
ERR_PTR(PTR_ERR(...)) style.

There is no functionality change, but still let us replace two such
instances as it improves consistency and readability.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507201048.bceHy8zX-lkp@intel.com/
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://patch.msgid.link/20250720164754.3999140-1-yonghong.song@linux.dev
This commit is contained in:
Yonghong Song
2025-07-20 09:47:54 -07:00
committed by Martin KaFai Lau
parent 42be23e8f2
commit 95993dc303
1 changed files with 2 additions and 2 deletions
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4
kernel/bpf/cgroup.c
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@@ -707,11 +707,11 @@ static struct bpf_prog_list *get_prog_list(struct hlist_head *progs, struct bpf_
if (is_link) {
anchor_link = bpf_get_anchor_link(flags, id_or_fd);
if (IS_ERR(anchor_link))
return ERR_PTR(PTR_ERR(anchor_link));
return ERR_CAST(anchor_link);
} else if (is_id || id_or_fd) {
anchor_prog = bpf_get_anchor_prog(flags, id_or_fd);
if (IS_ERR(anchor_prog))
return ERR_PTR(PTR_ERR(anchor_prog));
return ERR_CAST(anchor_prog);
}
if (!anchor_prog && !anchor_link) {