tracing/probes: fix error check in parse_btf_field()

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btf_find_struct_member() might return NULL or an error via the
ERR_PTR() macro. However, its caller in parse_btf_field() only checks
for the NULL condition. Fix this by using IS_ERR() and returning the
error up the stack.

Link: https://lore.kernel.org/all/20240527094351.15687-1-clopez@suse.de/

Fixes: c440adfbe3 ("tracing/probes: Support BTF based data structure field access")
Signed-off-by: Carlos López <clopez@suse.de>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

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Carlos López 2024-05-27 11:43:52 +02:00 • committed by Masami Hiramatsu (Google)

parent 699646734a

commit e569eb3497

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kernel/trace/trace_probe.c

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