From: Zhihao Cheng <chengzhihao1@huawei.com>
To: <peterz@infradead.org>, <mingo@redhat.com>, <acme@kernel.org>,
<jolsa@redhat.com>, <ast@kernel.org>, <daniel@iogearbox.net>,
<andrii@kernel.org>, <nathan@kernel.org>,
<ndesaulniers@google.com>
Cc: <linux-perf-users@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
<bpf@vger.kernel.org>, <clang-built-linux@googlegroups.com>,
<chengzhihao1@huawei.com>, <yukuai3@huawei.com>
Subject: [PATCH] perf llvm: Fix error return code in llvm__compile_bpf()
Date: Wed, 9 Jun 2021 19:59:45 +0800 [thread overview]
Message-ID: <20210609115945.2193194-1-chengzhihao1@huawei.com> (raw)
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: cb76371441d098 ("perf llvm: Allow passing options to llc ...")
Fixes: 5eab5a7ee032ac ("perf llvm: Display eBPF compiling command ...")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
---
tools/perf/util/llvm-utils.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 3ceaf7ef3301..2de02639fb67 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -504,8 +504,9 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
goto errout;
}
- if (asprintf(&pipe_template, "%s -emit-llvm | %s -march=bpf %s -filetype=obj -o -",
- template, llc_path, opts) < 0) {
+ err = asprintf(&pipe_template, "%s -emit-llvm | %s -march=bpf %s -filetype=obj -o -",
+ template, llc_path, opts);
+ if (err < 0) {
pr_err("ERROR:\tnot enough memory to setup command line\n");
goto errout;
}
@@ -524,7 +525,8 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
pr_debug("llvm compiling command template: %s\n", template);
- if (asprintf(&command_echo, "echo -n \"%s\"", template) < 0)
+ err = asprintf(&command_echo, "echo -n \"%s\"", template);
+ if (err < 0)
goto errout;
err = read_from_pipe(command_echo, (void **) &command_out, NULL);
--
2.31.1
next reply other threads:[~2021-06-09 11:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-09 11:59 Zhihao Cheng [this message]
2021-07-01 17:20 ` Arnaldo Carvalho de Melo
2021-07-02 3:01 ` Zhihao Cheng
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