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Commit bd4fb4d4 authored by Stuart Menefy's avatar Stuart Menefy Committed by Paul Mundt
Browse files

sh: Fix underflow in SH udelay() code. 



Signed-off-by: default avatarStuart Menefy <stuart.menefy@st.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 6d243dd3

arch/sh/lib/delay.c

+3 −2
Original line number Diff line number Diff line
@@ -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)