[PATCH] ibmtr: remove *sleep_on*() usage

From: Nishanth Aravamudan <nacc@us.ibm.com>

[applies on top of patches/ibmtr_use_msleep_msleep_interruptible.patch]

Replace deprecated *sleep_on*() function calls with direct wait-queue
usage. Patch is compile-tested. The patch also fixes a potentially racy
conditional in tok_open(), whereby msleep_interruptible() could receive a
signal within the last jiffy, thus returning 0, but signal_pending(current)
would be true.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/net/tokenring/ibmtr.c
===================================================================
--- linux-kj.orig/drivers/net/tokenring/ibmtr.c	2005-10-28 16:28:45.000000000 +0400
+++ linux-kj/drivers/net/tokenring/ibmtr.c	2005-10-28 16:28:46.000000000 +0400
@@ -109,6 +109,7 @@ in the event that chatty debug messages 
 
 #include <linux/module.h>
 #include <linux/delay.h>
+#include <linux/wait.h>
 
 #ifdef PCMCIA		/* required for ibmtr_cs.c to build */
 #undef MODULE		/* yes, really */
@@ -843,6 +844,7 @@ static int __devinit trdev_init(struct n
 
 static int tok_init_card(struct net_device *dev)
 {
+	DEFINE_WAIT(wait);
 	struct tok_info *ti;
 	short PIOaddr;
 	unsigned long i;
@@ -863,13 +865,16 @@ static int tok_init_card(struct net_devi
 		writeb(SRPR_ENABLE_PAGING,ti->mmio+ACA_OFFSET+ACA_RW+SRPR_EVEN);
 #endif
 	writeb(INT_ENABLE, ti->mmio + ACA_OFFSET + ACA_SET + ISRP_EVEN);
-	i = sleep_on_timeout(&ti->wait_for_reset, 4 * HZ);
+	prepare_to_wait(&ti->wait_for_reset, &wait, TASK_UNINTERRUPTIBLE);
+	i = schedule_timeout(4*HZ);
+	finish_wait(&ti->wait_for_reset, &wait);
 	return i? 0 : -EAGAIN;
 }
 
 /*****************************************************************************/
 static int tok_open(struct net_device *dev)
 {
+	DEFINE_WAIT(wait);
 	struct tok_info *ti = (struct tok_info *) dev->priv;
 	int i;
 
@@ -894,7 +899,9 @@ static int tok_open(struct net_device *d
 
 	while (1){
 		tok_open_adapter((unsigned long) dev);
-		i= interruptible_sleep_on_timeout(&ti->wait_for_reset, 25 * HZ);
+		prepare_to_wait(&ti->wait_for_reset, &wait, TASK_INTERRUPTIBLE);
+		i = schedule_timeout(25 * HZ);
+		finish_wait(&ti->wait_for_reset, &wait);
 		/* sig catch: estimate opening adapter takes more than .5 sec*/
 		if (i>(245*HZ)/10) break; /* fancier than if (i==25*HZ) */
 		if (i==0) break;
@@ -903,7 +910,8 @@ static int tok_open(struct net_device *d
 			DPRINTK("Adapter is up and running\n");
 			return 0;
 		}
-		if(msleep_interruptible(jiffies_to_msecs(TR_RETRY_INTERVAL)))
+		msleep_interruptible(jiffies_to_msecs(TR_RETRY_INTERVAL));
+		if (signal_pending(current))
 			break; /*prob. a signal, like the i>24*HZ case above */
 	}
 	outb(0, dev->base_addr + ADAPTRESET);/* kill pending interrupts*/