perf machine: Pass buffer size to machine__mmap_name

[safe/jmp/linux-2.6] / tools / perf / util / map.c

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index da3d4e8..ee25ee9 100644 (file)
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -629,14 +629,14 @@ void machines__process(struct rb_root *self, machine__process_t process, void *d
        }
 }
 
-char *machine__mmap_name(struct machine *self, char *buff)
+char *machine__mmap_name(struct machine *self, char *bf, size_t size)
 {
        if (machine__is_host(self))
-               sprintf(buff, "[%s]", "kernel.kallsyms");
+               snprintf(bf, size, "[%s]", "kernel.kallsyms");
        else if (machine__is_default_guest(self))
-               sprintf(buff, "[%s]", "guest.kernel.kallsyms");
+               snprintf(bf, size, "[%s]", "guest.kernel.kallsyms");
        else
-               sprintf(buff, "[%s.%d]", "guest.kernel.kallsyms", self->pid);
+               snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid);
 
-       return buff;
+       return bf;
 }