[PATCH] drivers/scsi/*: use time_after() and friends

They deal with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 05347eed9dd..fee843fab1c 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -18,6 +18,7 @@
 #include <linux/parport.h>
 #include <linux/workqueue.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
 #include <asm/io.h>
 
 #include <scsi/scsi.h>
@@ -726,7 +727,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
                                 retv--;
 
                         if (retv) {
-                                if ((jiffies - dev->jstart) > (1 * HZ)) {
+                                if (time_after(jiffies, dev->jstart + (1 * HZ))) {
                                         printk
                                             ("ppa: Parallel port cable is unplugged!!\n");
                                         ppa_fail(dev, DID_BUS_BUSY);