linux-kernel - [PATCH] CDROM: replace jiffies busyloop with msleep

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Date:	Tue, 22 May 2007 12:25:25 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Jeff Garzik <jeff@...zik.org>
Subject: [PATCH] CDROM: replace jiffies busyloop with msleep

From: Ingo Molnar <mingo@...e.hu>

The SJCD driver uses a jiffies busy loop. Replace it with msleep.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
Acked-by: Thomas Gleixner <tglx@...utronix.de>

---
 drivers/cdrom/sjcd.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux-2.6/drivers/cdrom/sjcd.c
===================================================================
--- linux-2.6.orig/drivers/cdrom/sjcd.c
+++ linux-2.6/drivers/cdrom/sjcd.c
@@ -69,6 +69,7 @@
 #include <linux/string.h>
 #include <linux/major.h>
 #include <linux/init.h>
+#include <linux/delay.h>
 
 #include <asm/system.h>
 #include <asm/io.h>
@@ -1709,12 +1710,11 @@ static int __init sjcd_init(void)
 	printk(KERN_INFO "SJCD: Resetting: ");
 	sjcd_send_cmd(SCMD_RESET);
 	for (i = 1000; i > 0 && !sjcd_status_valid; --i) {
-		unsigned long timer;
-
 		/*
 		 * Wait 10ms approx.
 		 */
-		for (timer = jiffies; time_before_eq(jiffies, timer););
+		msleep(10);
+
 		if ((i % 100) == 0)
 			printk(".");
 		(void) sjcd_check_status();


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