[PATCH] pci hotplug/shpchp: replace schedule_timeout() with msleep_interruptible()

Use msleep_interruptible() instead of schedule_timeout() to guarantee
the task delays as expected.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/pci/hotplug/shpchp.h

@@ -31,6 +31,7 @@
 
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/delay.h>
 #include <asm/semaphore.h>
 #include <asm/io.h>		
 #include "pci_hotplug.h"
@@ -381,16 +382,14 @@ static inline int wait_for_ctrl_irq (struct controller *ctrl)
 	dbg("%s : start\n",__FUNCTION__);
 
 	add_wait_queue(&ctrl->queue, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
 
 	if (!shpchp_poll_mode) {
 		/* Sleep for up to 1 second */
-		schedule_timeout(1*HZ);
+		msleep_interruptible(1000);
 	} else {
 		/* Sleep for up to 2 seconds */
-		schedule_timeout(2*HZ);
+		msleep_interruptible(2000);
 	}
-	set_current_state(TASK_RUNNING);
 	remove_wait_queue(&ctrl->queue, &wait);
 	if (signal_pending(current))
 		retval =  -EINTR;