From bd4fb4d4c1e4a5a2ffbf57a83817a749df1339dd Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Mon, 24 Aug 2009 18:18:50 +0900 Subject: [PATCH] sh: Fix underflow in SH udelay() code. Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt --- arch/sh/lib/delay.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/sh/lib/delay.c b/arch/sh/lib/delay.c index f3ddd21..faa8f86 100644 --- a/arch/sh/lib/delay.c +++ b/arch/sh/lib/delay.c @@ -21,13 +21,14 @@ void __delay(unsigned long loops) inline void __const_udelay(unsigned long xloops) { + xloops *= 4; __asm__("dmulu.l %0, %2\n\t" "sts mach, %0" : "=r" (xloops) : "0" (xloops), - "r" (HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy) + "r" (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4)) : "macl", "mach"); - __delay(xloops); + __delay(++xloops); } void __udelay(unsigned long usecs) -- 2.7.4