[PATCH] PLIP driver: convert killed_timer_sem to completion

From: Matthias Kaehlcke
Date: Sat Dec 08 2007 - 11:23:28 EST


PLIP driver: convert the semaphore killed_timer_sem to
a completion

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>

--

diff --git a/drivers/net/plip.c b/drivers/net/plip.c
index 57c9866..fee3d7b 100644
--- a/drivers/net/plip.c
+++ b/drivers/net/plip.c
@@ -106,6 +106,7 @@ static const char version[] = "NET3 PLIP version 2.4-parport gniibe@xxxxxxxxx\n"
#include <linux/if_plip.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
+#include <linux/completion.h>
#include <linux/parport.h>
#include <linux/bitops.h>

@@ -114,7 +115,6 @@ static const char version[] = "NET3 PLIP version 2.4-parport gniibe@xxxxxxxxx\n"
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/byteorder.h>
-#include <asm/semaphore.h>

/* Maximum number of devices to support. */
#define PLIP_MAX 8
@@ -221,7 +221,7 @@ struct net_local {
int should_relinquish;
spinlock_t lock;
atomic_t kill_timer;
- struct semaphore killed_timer_sem;
+ struct completion killed_timer_cmp;
};

static inline void enable_parport_interrupts (struct net_device *dev)
@@ -385,7 +385,7 @@ plip_timer_bh(struct work_struct *work)
schedule_delayed_work(&nl->timer, 1);
}
else {
- up (&nl->killed_timer_sem);
+ complete(&nl->killed_timer_cmp);
}
}

@@ -1112,9 +1112,9 @@ plip_close(struct net_device *dev)

if (dev->irq == -1)
{
- init_MUTEX_LOCKED (&nl->killed_timer_sem);
+ init_completion(&nl->killed_timer_cmp);
atomic_set (&nl->kill_timer, 1);
- down (&nl->killed_timer_sem);
+ wait_for_completion(&nl->killed_timer_cmp);
}

#ifdef NOTDEF

--
Matthias Kaehlcke
Linux System Developer
Barcelona

La libertad es como la mañana. Hay quienes esperan dormidos a que
llegue, pero hay quienes desvelan y caminan la noche para alcanzarla
(Subcomandante Marcos)
.''`.
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