[PATCH 2/4] perf, tool: Factor evlist code to use global unmap function

[Jiri Olsa <jolsa@redhat.com>]

Using __perf_evlist__munmap in case of map failure rather
than duplicate the unmap code.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/util/evlist.c |   20 +++++++-------------
 1 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index f3178bc..56f1d34 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -416,7 +416,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
 	return event;
 }
 
-void perf_evlist__munmap(struct perf_evlist *evlist)
+static void __perf_evlist__munmap(struct perf_evlist *evlist)
 {
 	int i;
 
@@ -426,7 +426,11 @@ void perf_evlist__munmap(struct perf_evlist *evlist)
 			evlist->mmap[i].base = NULL;
 		}
 	}
+}
 
+void perf_evlist__munmap(struct perf_evlist *evlist)
+{
+	__perf_evlist__munmap(evlist);
 	free(evlist->mmap);
 	evlist->mmap = NULL;
 }
@@ -494,12 +498,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist)
 	return 0;
 
 out_unmap:
-	for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
-		if (evlist->mmap[cpu].base != NULL) {
-			munmap(evlist->mmap[cpu].base, evlist->mmap_len);
-			evlist->mmap[cpu].base = NULL;
-		}
-	}
+	__perf_evlist__munmap(evlist);
 	return -1;
 }
 
@@ -533,12 +532,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist)
 	return 0;
 
 out_unmap:
-	for (thread = 0; thread < evlist->threads->nr; thread++) {
-		if (evlist->mmap[thread].base != NULL) {
-			munmap(evlist->mmap[thread].base, evlist->mmap_len);
-			evlist->mmap[thread].base = NULL;
-		}
-	}
+	__perf_evlist__munmap(evlist);
 	return -1;
 }
 
-- 
1.7.4