linux-kernel - [PATCH 3/3] staging: gdm72xx: Removed direct comparisons on jiffies

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Message-ID: <532BFAB2.2000007@fastmail.fm>
Date:	Fri, 21 Mar 2014 16:39:14 +0800
From:	Michalis Pappas <mpappas@...tmail.fm>
To:	gregkh@...uxfoundation.org
CC:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] staging: gdm72xx: Removed direct comparisons on jiffies


Replaced comparisons on jiffies values with wrap-safe functions.

Signed-off-by: Michalis Pappas <mpappas@...tmail.fm>
---
 drivers/staging/gdm72xx/gdm_usb.c   | 2 +-
 drivers/staging/gdm72xx/sdio_boot.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index 20539d8..9ddf8f5 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -730,7 +730,7 @@ static int k_mode_thread(void *arg)
 			spin_unlock_irqrestore(&k_lock, flags2);
  			expire = jiffies + K_WAIT_TIME;
-			while (jiffies < expire)
+			while (time_before(jiffies, expire))
 				schedule_timeout(K_WAIT_TIME);
  			spin_lock_irqsave(&rx->lock, flags);
diff --git a/drivers/staging/gdm72xx/sdio_boot.c b/drivers/staging/gdm72xx/sdio_boot.c
index cbe5dcf..2c02842 100644
--- a/drivers/staging/gdm72xx/sdio_boot.c
+++ b/drivers/staging/gdm72xx/sdio_boot.c
@@ -41,11 +41,11 @@ static u8 *tx_buf;
  static int ack_ready(struct sdio_func *func)
 {
-	unsigned long start = jiffies;
+	unsigned long wait = jiffies + HZ;
 	u8 val;
 	int ret;
 -	while ((jiffies - start) < HZ) {
+	while (time_before(jiffies, wait)) {
 		val = sdio_readb(func, 0x13, &ret);
 		if (val & 0x01)
 			return 1;
-- 
1.7.12.1


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