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perf unwind-libunwind: Add malloc() failure handling

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Add malloc() failure handling in unread_unwind_spec_debug_frame().
This make caller find_proc_info() works well when the allocation failure.

Signed-off-by: Yunseong Kim <yskelg@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Austin Kim <austindh.kim@gmail.com>
Cc: shjy180909@gmail.com
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Leo Yan <leo.yan@linux.dev>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240619204211.6438-2-yskelg@gmail.com
This commit is contained in:
Yunseong Kim 2024-06-20 05:42:12 +09:00 committed by Namhyung Kim
parent e9ffa312ff
commit 83da316a3b
1 changed files with 5 additions and 0 deletions
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5
tools/perf/util/unwind-libunwind-local.c
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@ -390,6 +390,11 @@ static int read_unwind_spec_debug_frame(struct dso *dso,
char *debuglink = malloc(PATH_MAX);
int ret = 0;
if (debuglink == NULL) {
pr_err("unwind: Can't read unwind spec debug frame.\n");
return -ENOMEM;
}
ret = dso__read_binary_type_filename(
dso, DSO_BINARY_TYPE__DEBUGLINK,
machine->root_dir, debuglink, PATH_MAX);