tracing/probes: Fix to add NULL check for BTF APIs

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Since find_btf_func_param() abd btf_type_by_id() can return NULL,
the caller must check the return value correctly.

Link: https://lore.kernel.org/all/169024903951.395371.11361556840733470934.stgit@devnote2/

Fixes: b576e09701 ("tracing/probes: Support function parameters if BTF is available")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Masami Hiramatsu (Google) 2023-07-25 10:37:19 +09:00

parent 6eaae19807

commit 1f9f4f4777

1 changed files with 4 additions and 4 deletions

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kernel/trace/trace_probe.c

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