linux-kernel - [PATCH v2] staging: rts5208: use msecs_to

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Message-Id: <1421997353-12781-1-git-send-email-der.herr@hofr.at>
Date:	Fri, 23 Jan 2015 08:15:53 +0100
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Surya Seetharaman <surya.seetharaman9@...il.com>,
	Keerthimai Janarthanan <keerthimaipb@...il.com>,
	Tina Johnson <tinajohnson.1234@...il.com>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	Fabio Falzoi <fabio.falzoi84@...il.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <der.herr@...r.at>
Subject: [PATCH v2] staging: rts5208: use msecs_to_jiffies for timeouts

This is only an API consolidation and should make things more readable

Signed-off-by: Nicholas Mc Guire <der.herr@...r.at>
---

v2: typo in patch subject fixed - no change in actual patch

Converting milliseconds to jiffies by val * HZ / 1000 is technically
not wrong but msecs_to_jiffies(val) is the cleaner solution and handles
corner cases correctly.

This patch was only compile tested with x86_64_defconfig + CONFIG_STAGING=y, 
CONFIG_RTS5208=m

Patch is against 3.19.0-rc5 -next-20150122

 drivers/staging/rts5208/rtsx_transport.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index 756a968..dab1995 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -271,7 +271,7 @@ int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout)
 
 	/* Wait for TRANS_OK_INT */
 	timeleft = wait_for_completion_interruptible_timeout(
-		&trans_done, timeout * HZ / 1000);
+		&trans_done, msecs_to_jiffies(timeout));
 	if (timeleft <= 0) {
 		dev_dbg(rtsx_dev(chip), "chip->int_reg = 0x%x\n",
 			chip->int_reg);
@@ -431,7 +431,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 	spin_unlock_irq(&rtsx->reg_lock);
 
 	timeleft = wait_for_completion_interruptible_timeout(
-		&trans_done, timeout * HZ / 1000);
+		&trans_done, msecs_to_jiffies(timeout));
 	if (timeleft <= 0) {
 		dev_dbg(rtsx_dev(chip), "Timeout (%s %d)\n",
 			__func__, __LINE__);
@@ -455,7 +455,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 		init_completion(&trans_done);
 		spin_unlock_irq(&rtsx->reg_lock);
 		timeleft = wait_for_completion_interruptible_timeout(
-			&trans_done, timeout * HZ / 1000);
+			&trans_done, msecs_to_jiffies(timeout));
 		if (timeleft <= 0) {
 			dev_dbg(rtsx_dev(chip), "Timeout (%s %d)\n",
 				__func__, __LINE__);
@@ -575,7 +575,7 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 		spin_unlock_irq(&rtsx->reg_lock);
 
 		timeleft = wait_for_completion_interruptible_timeout(
-			&trans_done, timeout * HZ / 1000);
+			&trans_done, msecs_to_jiffies(timeout));
 		if (timeleft <= 0) {
 			dev_dbg(rtsx_dev(chip), "Timeout (%s %d)\n",
 				__func__, __LINE__);
@@ -602,7 +602,7 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 		init_completion(&trans_done);
 		spin_unlock_irq(&rtsx->reg_lock);
 		timeleft = wait_for_completion_interruptible_timeout(
-			&trans_done, timeout * HZ / 1000);
+			&trans_done, msecs_to_jiffies(timeout));
 		if (timeleft <= 0) {
 			dev_dbg(rtsx_dev(chip), "Timeout (%s %d)\n",
 				__func__, __LINE__);
@@ -688,7 +688,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 
 	/* Wait for TRANS_OK_INT */
 	timeleft = wait_for_completion_interruptible_timeout(
-		&trans_done, timeout * HZ / 1000);
+		&trans_done, msecs_to_jiffies(timeout));
 	if (timeleft <= 0) {
 		dev_dbg(rtsx_dev(chip), "Timeout (%s %d)\n",
 			__func__, __LINE__);
-- 
1.7.10.4

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