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Subject[PATCH] 28/41 sound/oss/wavfront.c - convert cli to spinlocks
From
--- vanilla-2.5.32/sound/oss/wavfront.c	Sat Aug 10 00:04:15 2002
+++ linux-2.5-cli-oss/sound/oss/wavfront.c Thu Aug 15 14:34:05 2002
@@ -76,7 +76,7 @@
#include <linux/ptrace.h>
#include <linux/fcntl.h>
#include <linux/ioport.h>
-
+#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/config.h>

@@ -274,6 +274,7 @@
wait_queue_head_t interrupt_sleeper;
} dev;

+static spinlock_t lock=SPIN_LOCK_UNLOCKED;
static int detect_wffx(void);
static int wffx_ioctl (wavefront_fx_info *);
static int wffx_init (void);
@@ -2202,12 +2203,12 @@
{
unsigned long flags;

- save_flags (flags);
- cli();
+ /* this will not help on SMP - but at least it compiles */
+ spin_lock_irqsave(&lock, flags);
dev.irq_ok = 0;
outb (val,port);
interruptible_sleep_on_timeout (&dev.interrupt_sleeper, timeout);
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
}

static int __init wavefront_hw_reset (void)
@@ -2223,8 +2224,6 @@

printk (KERN_DEBUG LOGNAME "autodetecting WaveFront IRQ\n");

- sti ();
-
irq_mask = probe_irq_on ();

outb (0x0, dev.control_port);
-
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