Merge pull request #2535 from blueyed/kill

awesome.kill: use luaL_checknumber

luaa.c

@@ -252,18 +252,18 @@ luaA_restart(lua_State *L)
     return 0;
 }
 
-/** Send a signal to a process identified by its process id. See
- * `awesome.unix_signal` for a list of signals.
+/** Send a signal to a process.
  * @tparam integer pid Process identifier.  0 and negative values have special
  *   meaning.  See `man 3 kill`.
- * @tparam integer sig Signal number
+ * @tparam integer sig Signal number.
+ *   See `awesome.unix_signal` for a list of signals.
  * @treturn boolean true if the signal was successfully sent, else false
  * @function kill
  */
 static int
 luaA_kill(lua_State *L)
 {
-    int pid = lua_tonumber(L, 1);
+    int pid = luaL_checknumber(L, 1);
     int sig = luaA_checknumber_range(L, 2, 0, INT_MAX);
 
     int result = kill(pid, sig);