Staging: lustre/lustre/ptlrpc: service.c: Fixed issue with global integer being initialized to 0

Fixed global integer initialization issue.
Global variables should not be explicitly initialized to 0 or NULL.
Signed-off-by: Daniel Machon <dmachon.dev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/ptlrpc/service.c

@@ -43,7 +43,7 @@
 #include "ptlrpc_internal.h"
 
 /* The following are visible and mutable through /sys/module/ptlrpc */
-int test_req_buffer_pressure = 0;
+int test_req_buffer_pressure;
 module_param(test_req_buffer_pressure, int, 0444);
 MODULE_PARM_DESC(test_req_buffer_pressure, "set non-zero to put pressure on request buffer pools");
 module_param(at_min, int, 0644);