# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1538476372 -10800
# Node ID 7bf3c323cb6e15e73dc612b56ee973d06ab15542
# Parent  cd4fa2fab8d8f1a2d03841249230bed76d318502
Fixed off-by-one error in shared zone initialization.

On systems without atomic ops, not enough space was allocated
for mutex's file name during shared zone initialization.

diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -921,7 +921,8 @@ ngx_init_zone_pool(ngx_cycle_t *cycle, n
 
 #else
 
-    file = ngx_pnalloc(cycle->pool, cycle->lock_file.len + zn->shm.name.len);
+    file = ngx_pnalloc(cycle->pool,
+                       cycle->lock_file.len + zn->shm.name.len + 1);
     if (file == NULL) {
         return NGX_ERROR;
     }