#include <dlfcn.h>
#include <errno.h>
#include <linux/bitmap.h>
+#include <linux/err.h>
struct perf_annotate {
struct perf_tool tool;
data.path = input_name;
annotate.session = perf_session__new(&data, false, &annotate.tool);
- if (annotate.session == NULL)
- return -1;
+ if (IS_ERR(annotate.session))
+ return PTR_ERR(annotate.session);
annotate.has_br_stack = perf_header__has_feat(&annotate.session->header,
HEADER_BRANCH_STACK);