[PATCH] s390: fix sclp memory corruption in tty pages list

[linux-2.6-omap-h63xx.git] / drivers / s390 / char / sclp.c

diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index ceb0e474fde4691457cd7b97770b03c3bda5449b..4138564402b8c2ee27b3bf04731bebe1c3caf35e 100644 (file)
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -85,11 +85,10 @@ static volatile enum sclp_mask_state_t {
 /* Maximum retry counts */
 #define SCLP_INIT_RETRY                3
 #define SCLP_MASK_RETRY                3
-#define SCLP_REQUEST_RETRY     3
 
 /* Timeout intervals in seconds.*/
-#define SCLP_BUSY_INTERVAL     2
-#define SCLP_RETRY_INTERVAL    5
+#define SCLP_BUSY_INTERVAL     10
+#define SCLP_RETRY_INTERVAL    15
 
 static void sclp_process_queue(void);
 static int sclp_init_mask(int calculate);
@@ -153,11 +152,9 @@ __sclp_start_request(struct sclp_req *req)
        if (sclp_running_state != sclp_running_state_idle)
                return 0;
        del_timer(&sclp_request_timer);
-       if (req->start_count <= SCLP_REQUEST_RETRY) {
-               rc = service_call(req->command, req->sccb);
-               req->start_count++;
-       } else
-               rc = -EIO;
+       rc = service_call(req->command, req->sccb);
+       req->start_count++;
+
        if (rc == 0) {
                /* Sucessfully started request */
                req->status = SCLP_REQ_RUNNING;