linux-kernel - [PATCH] usb: host: max3421-hcd: use time

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Message-ID: <20141215072207.GA15062@ubuntu>
Date:	Mon, 15 Dec 2014 09:22:07 +0200
From:	Asaf Vertz <asaf.vertz@...demg.com>
To:	gregkh@...uxfoundation.org
Cc:	davidm@...uge.net, khoroshilov@...ras.ru, asaf.vertz@...demg.com,
	sachin.kamat@...aro.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...demg.com>
---
 drivers/usb/host/max3421-hcd.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index 6234c75..aaaff94 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';
-- 
1.7.0.4

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