[PATCH] perf unwind-libunwind: Add malloc() failure handling

[yskelg]

From: Yunseong Kim <yskelg@xxxxxxxxx>

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@xxxxxxxxx>
---
 tools/perf/util/unwind-libunwind-local.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index cde267ea3e99..a424eae6d308 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -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);
-- 
2.45.2