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Minor cleanup.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8682 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2004-08-27 20:58:30 +00:00
parent c96488c21d
commit a0c7b77db3
1 changed files with 19 additions and 25 deletions
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src/add-ons/kernel/bus_managers/scsi/dpc.c
+19 -25
View File
@@ -1,6 +1,6 @@
/*
** Copyright 2002/03, Thomas Kurschel. All rights reserved.
** Distributed under the terms of the OpenBeOS License.
** Distributed under the terms of the Haiku License.
*/
/*
@@ -21,15 +21,13 @@
status_t
scsi_alloc_dpc(scsi_dpc_info **dpc)
{
SHOW_FLOW0( 3, "" );
SHOW_FLOW0(3, "");
*dpc = (scsi_dpc_info *)malloc( sizeof( **dpc ));
if( *dpc == NULL )
*dpc = (scsi_dpc_info *)malloc(sizeof(scsi_dpc_info));
if (*dpc == NULL)
return B_NO_MEMORY;
memset( *dpc, 0, sizeof( **dpc ));
memset(*dpc, 0, sizeof(scsi_dpc_info));
return B_OK;
}
@@ -37,37 +35,34 @@ scsi_alloc_dpc(scsi_dpc_info **dpc)
status_t
scsi_free_dpc(scsi_dpc_info *dpc)
{
SHOW_FLOW0( 3, "" );
SHOW_FLOW0(3, "");
if( dpc != NULL )
free( dpc );
free(dpc);
return B_OK;
}
status_t
scsi_schedule_dpc(scsi_bus_info *bus, scsi_dpc_info *dpc, /*int flags,*/
void (*func)( void *arg ), void *arg)
void (*func)(void *arg), void *arg)
{
SHOW_FLOW( 3, "bus=%p, dpc=%p", bus, dpc );
acquire_spinlock_irq( &bus->dpc_lock );
SHOW_FLOW(3, "bus=%p, dpc=%p", bus, dpc);
acquire_spinlock_irq(&bus->dpc_lock);
dpc->func = func;
dpc->arg = arg;
if( !dpc->registered ) {
if (!dpc->registered) {
dpc->registered = true;
dpc->next = bus->dpc_list;
bus->dpc_list = dpc;
} else
SHOW_FLOW0( 3, "already registered - ignored" );
SHOW_FLOW0(3, "already registered - ignored");
release_spinlock_irq( &bus->dpc_lock );
release_spinlock_irq(&bus->dpc_lock);
// this is called in IRQ context, so scheduler is not allowed
release_sem_etc( bus->start_service, 1, B_DO_NOT_RESCHEDULE );
release_sem_etc(bus->start_service, 1, B_DO_NOT_RESCHEDULE);
return B_OK;
}
@@ -77,12 +72,12 @@ scsi_schedule_dpc(scsi_bus_info *bus, scsi_dpc_info *dpc, /*int flags,*/
bool
scsi_check_exec_dpc(scsi_bus_info *bus)
{
SHOW_FLOW( 3, "bus=%p, dpc_list=%p", bus, bus->dpc_list );
SHOW_FLOW(3, "bus=%p, dpc_list=%p", bus, bus->dpc_list);
acquire_spinlock_irq(&bus->dpc_lock);
if (bus->dpc_list) {
scsi_dpc_info *dpc;
void (*dpc_func)( void * );
void (*dpc_func)(void *);
void *dpc_arg;
dpc = bus->dpc_list;
@@ -95,11 +90,10 @@ scsi_check_exec_dpc(scsi_bus_info *bus)
release_spinlock_irq(&bus->dpc_lock);
dpc_func(dpc_arg);
return true;
}
release_spinlock_irq(&bus->dpc_lock);
return false;
}