[PATCH] w1/w1_therm: replace schedule_timeout() with msleep_interruptible()

Description: Use msleep_interruptible() instead of schedule_timeout() to
guarantee the task delays as expected. Changed tm to an int, as it now is in
terms of msecs, not jiffies.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/w1/w1_therm.c

@@ -26,6 +26,7 @@
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/types.h>
+#include <linux/delay.h>
 
 #include "w1.h"
 #include "w1_io.h"
@@ -128,7 +129,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
 		if (!w1_reset_bus (dev)) {
 			int count = 0;
 			u8 match[9] = {W1_MATCH_ROM, };
-			unsigned long tm;
+			unsigned int tm = 750;
 
 			memcpy(&match[1], (u64 *) & sl->reg_num, 8);
 			
@@ -136,11 +137,8 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
 
 			w1_write_8(dev, W1_CONVERT_TEMP);
 
-			tm = jiffies + msecs_to_jiffies(750);
-			while(time_before(jiffies, tm)) {
-				set_current_state(TASK_INTERRUPTIBLE);
-				schedule_timeout(tm-jiffies);
-
+			while (tm) {
+				tm = msleep_interruptible(tm);
 				if (signal_pending(current))
 					flush_signals(current);
 			}