linux-kernel - [PATCH] arm ecard: Conver to use the kthread API.

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Message-Id: <11769695722834-git-send-email-ebiederm@xmission.com>
Date:	Thu, 19 Apr 2007 01:58:43 -0600
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	"<Andrew Morton" <akpm@...l.org>
Cc:	<containers@...ts.osdl.org>, Oleg Nesterov <oleg@...sign.ru>,
	Christoph Hellwig <hch@...radead.org>,
	<linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: [PATCH] arm ecard: Conver to use the kthread API.

From: Eric W. Biederman <ebiederm@...ssion.com>

This patch modifies the startup of kecardd to use
kthread_run not a kernel_thread combination of kernel_thread
and daemonize.  Making the code slightly simpler and more
maintainable.

Cc: Russell King <rmk+kernel@....linux.org.uk>
Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 arch/arm/kernel/ecard.c |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index f1c0fb9..6c15f5f 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -40,6 +40,7 @@
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/kthread.h>
 
 #include <asm/dma.h>
 #include <asm/ecard.h>
@@ -263,8 +264,6 @@ static int ecard_init_mm(void)
 static int
 ecard_task(void * unused)
 {
-	daemonize("kecardd");
-
 	/*
 	 * Allocate a mm.  We're not a lazy-TLB kernel task since we need
 	 * to set page table entries where the user space would be.  Note
@@ -1058,13 +1057,14 @@ ecard_probe(int slot, card_type_t type)
  */
 static int __init ecard_init(void)
 {
-	int slot, irqhw, ret;
+	struct task_struct *task;
+	int slot, irqhw;
 
-	ret = kernel_thread(ecard_task, NULL, CLONE_KERNEL);
-	if (ret < 0) {
+	task = kthread_run(ecard_task, NULL, "kecardd");
+	if (IS_ERR(task)) {
 		printk(KERN_ERR "Ecard: unable to create kernel thread: %d\n",
-		       ret);
-		return ret;
+		       PTR_ERR(task));
+		return PTR_ERR(task);
 	}
 
 	printk("Probing expansion cards\n");
-- 
1.5.0.g53756

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