linux-kernel - [PATCH] staging: unisys: use schedule_timeout

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Date:	Fri, 29 May 2015 17:31:16 +0200
From:	Nicholas Mc Guire <hofrat@...dl.org>
To:	Benjamin Romer <benjamin.romer@...sys.com>
Cc:	David Kershner <david.kershner@...sys.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Erik Arfvidson <erik.arfvidson@...sys.com>,
	Prarit Bhargava <prarit@...hat.com>, sparmaintainer@...sys.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <hofrat@...dl.org>
Subject: [PATCH] staging: unisys: use schedule_timeout_interruptible()

API consolidation with coccinelle found:
./drivers/staging/unisys/visorbus/periodic_work.c:196:3-19:
        consolidation with schedule_timeout_*() recommended

This is a 1:1 conversion with respect to schedule_timeout() to the 
schedule_timeout_interruptible() helper only - so only an API 
consolidation to improve readability. The hard coded timeout of 10
jiffies is HZ dependent which it should not be, so it is converted
with msecs_to_jiffies.

Patch was compile tested with x86_64_defconfig + CONFIG_STAGING=y,
CONFIG_UNISYSSPAR=y, CONFIG_UNISYS_VISORBUS=m

Patch is against 4.1-rc5 (localversion-next is -next-20150529)

Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
---

As the actually intended timeout is not documented and msecs_to_jiffies
timeouts can be a factor 10 different from the current effective timeout
this needs to be checked by someone who knows the details of this driver
in any case it should be passed in a HZ independent manner.

 drivers/staging/unisys/visorbus/periodic_work.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/unisys/visorbus/periodic_work.c b/drivers/staging/unisys/visorbus/periodic_work.c
index 3562e8b..5e56088 100644
--- a/drivers/staging/unisys/visorbus/periodic_work.c
+++ b/drivers/staging/unisys/visorbus/periodic_work.c
@@ -192,8 +192,7 @@ bool visor_periodic_work_stop(struct periodic_work *pw)
 		}
 		if (pw->is_scheduled) {
 			write_unlock(&pw->lock);
-			__set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(10);
+			schedule_timeout_interruptible(msecs_to_jiffies(10));
 			write_lock(&pw->lock);
 		} else {
 			pw->want_to_stop = false;
-- 
1.7.10.4

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