linux-kernel - [PATCH v2 4/6] drivers/misc/ti-st: use cpu friendly completions

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Date:	Fri, 3 Aug 2012 14:46:15 -0500
From:	<pavan_savoy@...com>
To:	<gregkh@...e.de>, <linux-kernel@...r.kernel.org>
CC:	<pavan_savoy@...y.com>, Pavan Savoy <pavan_savoy@...com>
Subject: [PATCH v2 4/6] drivers/misc/ti-st: use cpu friendly completions

From: Pavan Savoy <pavan_savoy@...com>

Be nice to CPU and don't hog the resources, use a nice wait_for_interruptible
timeout for completions instead of wait_for_timeout which is
non-interruptible.

Signed-off-by: Pavan Savoy <pavan_savoy@...com>
---
 drivers/misc/ti-st/st_kim.c |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 54ff644..0f36db3 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -207,8 +207,8 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 		return -EIO;
 	}
 
-	if (!wait_for_completion_timeout
-	    (&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
+	if (!wait_for_completion_interruptible_timeout(
+		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
 		pr_err(" waiting for ver info- timed out ");
 		return -ETIMEDOUT;
 	}
@@ -370,9 +370,9 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 			break;
 		case ACTION_WAIT_EVENT:  /* wait */
 			pr_debug("W");
-			if (!wait_for_completion_timeout
-					(&kim_gdata->kim_rcvd,
-					 msecs_to_jiffies(CMD_RESP_TIME))) {
+			if (!wait_for_completion_interruptible_timeout(
+					&kim_gdata->kim_rcvd,
+					msecs_to_jiffies(CMD_RESP_TIME))) {
 				pr_err("response timeout during fw download ");
 				/* timed out */
 				release_firmware(kim_gdata->fw_entry);
@@ -462,8 +462,8 @@ long st_kim_start(void *kim_data)
 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
 				NULL, "install");
 		/* wait for ldisc to be installed */
-		err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
-				msecs_to_jiffies(LDISC_TIME));
+		err = wait_for_completion_interruptible_timeout(
+			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));
 		if (!err) {
 			/* ldisc installation timeout,
 			 * flush uart, power cycle BT_EN */
@@ -520,8 +520,8 @@ long st_kim_stop(void *kim_data)
 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");
 
 	/* wait for ldisc to be un-installed */
-	err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
-			msecs_to_jiffies(LDISC_TIME));
+	err = wait_for_completion_interruptible_timeout(
+		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));
 	if (!err) {		/* timeout */
 		pr_err(" timed out waiting for ldisc to be un-installed");
 		err = -ETIMEDOUT;
-- 
1.7.4.1

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