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OpenCloudOS-Kernel
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[S390] raw3270: use mutex instead of semaphore 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Christoph Hellwig 2007-05-31 17:38:04 +02:00 committed by Martin Schwidefsky
parent e11f0d04c6
commit d330f93595
1 changed files with 5 additions and 5 deletions
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10
drivers/s390/char/raw3270.c
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@ -487,7 +487,7 @@ struct raw3270_ua { /* Query Reply structure for Usable Area */
} __attribute__ ((packed)); } __attribute__ ((packed));
static struct diag210 raw3270_init_diag210; static struct diag210 raw3270_init_diag210;
static DECLARE_MUTEX(raw3270_init_sem); static DEFINE_MUTEX(raw3270_init_mutex);
static int static int
raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq, raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
@ -713,7 +713,7 @@ raw3270_size_device(struct raw3270 *rp)
{ {
int rc; int rc;
down(&raw3270_init_sem); mutex_lock(&raw3270_init_mutex);
rp->view = &raw3270_init_view; rp->view = &raw3270_init_view;
raw3270_init_view.dev = rp; raw3270_init_view.dev = rp;
if (MACHINE_IS_VM) if (MACHINE_IS_VM)
@ -722,7 +722,7 @@ raw3270_size_device(struct raw3270 *rp)
rc = __raw3270_size_device(rp); rc = __raw3270_size_device(rp);
raw3270_init_view.dev = NULL; raw3270_init_view.dev = NULL;
rp->view = NULL; rp->view = NULL;
up(&raw3270_init_sem); mutex_unlock(&raw3270_init_mutex);
if (rc == 0) { /* Found something. */ if (rc == 0) { /* Found something. */
/* Try to find a model. */ /* Try to find a model. */
rp->model = 0; rp->model = 0;
@ -749,7 +749,7 @@ raw3270_reset_device(struct raw3270 *rp)
{ {
int rc; int rc;
down(&raw3270_init_sem); mutex_lock(&raw3270_init_mutex);
memset(&rp->init_request, 0, sizeof(rp->init_request)); memset(&rp->init_request, 0, sizeof(rp->init_request));
memset(&rp->init_data, 0, sizeof(rp->init_data)); memset(&rp->init_data, 0, sizeof(rp->init_data));
/* Store reset data stream to init_data/init_request */ /* Store reset data stream to init_data/init_request */
@ -764,7 +764,7 @@ raw3270_reset_device(struct raw3270 *rp)
rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request); rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
raw3270_init_view.dev = NULL; raw3270_init_view.dev = NULL;
rp->view = NULL; rp->view = NULL;
up(&raw3270_init_sem); mutex_unlock(&raw3270_init_mutex);
return rc; return rc;
} }