From: Asaf Vertz <asaf.vertz@tandemg.com>
Date: Mon, 15 Dec 2014 07:22:07 +0000 (+0200)
Subject: usb: host: max3421-hcd: use time_after()
X-Git-Tag: firefly_0821_release~176^2~2323^2~71
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=788bfe88d552b89842b028ca78e5451a1e64b21b;p=firefly-linux-kernel-4.4.55.git

usb: host: max3421-hcd: use time_after()

To be future-proof and for better readability the time comparisons are
modified to use time_after() instead of plain, error-prone math.

Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Acked-by: David Mosberger <davidm@egauge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index 6234c75da33f..aaaff947d608 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -55,6 +55,7 @@
  * single thread (max3421_spi_thread).
  */
 
+#include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/spi/spi.h>
 #include <linux/usb.h>
@@ -1291,7 +1292,7 @@ max3421_handle_irqs(struct usb_hcd *hcd)
 		char sbuf[16 * 16], *dp, *end;
 		int i;
 
-		if (jiffies - last_time > 5*HZ) {
+		if (time_after(jiffies, last_time + 5*HZ)) {
 			dp = sbuf;
 			end = sbuf + sizeof(sbuf);
 			*dp = '\0';