From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 10 Oct 2008 19:33:29 +0000 (+0200)
Subject: [S390] fix initialization of stp
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=4a672cfa3a7fcbc6f2adc558f34148be1096c561;p=deliverable%2Flinux.git

[S390] fix initialization of stp

chsc_sstpc returns -EIO on error and 0 on success but stp_reset checks
against 1 instead of 0. chsc_sstpc used to return 1 on success, one
call location has not been updated ..

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 06acb1a18bbc..b94e9e3b694a 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -1356,7 +1356,7 @@ static void __init stp_reset(void)
 
 	stp_page = alloc_bootmem_pages(PAGE_SIZE);
 	rc = chsc_sstpc(stp_page, STP_OP_CTRL, 0x0000);
-	if (rc == 1)
+	if (rc == 0)
 		set_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags);
 	else if (stp_online) {
 		printk(KERN_WARNING "Running on non STP capable machine.\n");