1 files changed, 9 insertions, 3 deletions

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 954ca210e4b7..5bf8ab034466 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -290,7 +290,7 @@ int show_line_range(struct line_range *lr)
 
         if (lr->end == INT_MAX)
                 lr->end = l + NR_ADDITIONAL_LINES;
-        while (l < lr->end && !feof(fp) && ret >= 0)
+        while (l <= lr->end && !feof(fp) && ret >= 0)
                 ret = show_one_line(fp, (l++) - lr->offset, false, false);
 end:
         fclose(fp);
@@ -341,9 +341,15 @@ int parse_line_range_desc(const char *arg, struct line_range *lr)
         ptr = strchr(arg, ':');
         if (ptr) {
                 lr->start = (int)strtoul(ptr + 1, &tmp, 0);
-                if (*tmp == '+')
+                if (*tmp == '+') {
                         lr->end = lr->start + (int)strtoul(tmp + 1, &tmp, 0);
-                else if (*tmp == '-')
+                        lr->end--;      /*
+                                         * Adjust the number of lines here.
+                                         * If the number of lines == 1, the
+                                         * the end of line should be equal to
+                                         * the start of line.
+                                         */
+                } else if (*tmp == '-')
                         lr->end = (int)strtoul(tmp + 1, &tmp, 0);
                 else
                         lr->end = INT_MAX;