osdmaptool: fix divide by zero error

Signed-off-by: Yunchuan Wen <yunchuan.wen@kylin-cloud.com>

diff --git a/src/tools/osdmaptool.cc b/src/tools/osdmaptool.cc
index b679ad9621b4133e9289f61cdd4d99c726ff4f4b..5ed2b948a85160586f46344c28fcb0d0acc12e74 100644 (file)
--- a/src/tools/osdmaptool.cc
+++ b/src/tools/osdmaptool.cc
@@ -407,7 +407,7 @@ int main(int argc, const char **argv)
        max_osd = i;
 
     }
-    uint64_t avg = total / in;
+    uint64_t avg = in ? (total / in) : 0;
     double dev = 0;
     for (int i=0; i<n; i++) {
       if (!osdmap.is_in(i))