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--- ../../alsa-kernel/core/seq/seq_memory.c 2006-01-10 16:08:55.000000000 +0100
+++ seq_memory.c 2006-01-10 16:08:53.000000000 +0100
@@ -1,3 +1,4 @@
+#define __NO_VERSION__
/*
* ALSA sequencer Memory Manager
* Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
@@ -32,6 +33,10 @@
#include "seq_info.h"
#include "seq_lock.h"
+/* semaphore in struct file record */
+#define semaphore_of(fp) ((fp)->f_dentry->d_inode->i_sem)
+
+
static inline int snd_seq_pool_available(struct snd_seq_pool *pool)
{
return pool->total_elements - atomic_read(&pool->counter);
@@ -240,7 +245,18 @@
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&pool->output_sleep, &wait);
spin_unlock_irq(&pool->lock);
+#ifdef LINUX_2_2
+ /* change semaphore to allow other clients
+ to access device file */
+ if (file)
+ up(&semaphore_of(file));
+#endif
schedule();
+#ifdef LINUX_2_2
+ /* restore semaphore again */
+ if (file)
+ down(&semaphore_of(file));
+#endif
spin_lock_irq(&pool->lock);
remove_wait_queue(&pool->output_sleep, &wait);
/* interrupted? */
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