From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 14 Feb 2006 21:53:14 +0000 (-0800)
Subject: [PATCH] s390: fix __delay implementation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e35a6619e7be59aa38249346327c89207663bb37;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] s390: fix __delay implementation

Fix __delay implementation.  Called with an argument "1" or "0" it would
loop nearly forever (since (1/2)-1 = 0xffffffff).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index e96c35bddac7..71f0a2fb3078 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -30,7 +30,7 @@ void __delay(unsigned long loops)
          */
         __asm__ __volatile__(
                 "0: brct %0,0b"
-                : /* no outputs */ : "r" (loops/2) );
+                : /* no outputs */ : "r" ((loops/2) + 1));
 }
 
 /*