diff options
Diffstat (limited to 'drivers/media/dvb/siano/smscoreapi.c')
| -rw-r--r-- | drivers/media/dvb/siano/smscoreapi.c | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/drivers/media/dvb/siano/smscoreapi.c b/drivers/media/dvb/siano/smscoreapi.c index 0c87a3c3899a..135e45bd00c7 100644 --- a/drivers/media/dvb/siano/smscoreapi.c +++ b/drivers/media/dvb/siano/smscoreapi.c @@ -116,9 +116,7 @@ static struct smscore_registry_entry_t *smscore_find_registry(char *devpath) return entry; } } - entry = (struct smscore_registry_entry_t *) - kmalloc(sizeof(struct smscore_registry_entry_t), - GFP_KERNEL); + entry = kmalloc(sizeof(struct smscore_registry_entry_t), GFP_KERNEL); if (entry) { entry->mode = default_mode; strcpy(entry->devpath, devpath); @@ -1100,31 +1098,26 @@ EXPORT_SYMBOL_GPL(smscore_onresponse); * * @return pointer to descriptor on success, NULL on error. */ -struct smscore_buffer_t *smscore_getbuffer(struct smscore_device_t *coredev) + +struct smscore_buffer_t *get_entry(struct smscore_device_t *coredev) { struct smscore_buffer_t *cb = NULL; unsigned long flags; - DEFINE_WAIT(wait); - spin_lock_irqsave(&coredev->bufferslock, flags); + if (!list_empty(&coredev->buffers)) { + cb = (struct smscore_buffer_t *) coredev->buffers.next; + list_del(&cb->entry); + } + spin_unlock_irqrestore(&coredev->bufferslock, flags); + return cb; +} - /* This function must return a valid buffer, since the buffer list is - * finite, we check that there is an available buffer, if not, we wait - * until such buffer become available. - */ - - prepare_to_wait(&coredev->buffer_mng_waitq, &wait, TASK_INTERRUPTIBLE); - - if (list_empty(&coredev->buffers)) - schedule(); - - finish_wait(&coredev->buffer_mng_waitq, &wait); - - cb = (struct smscore_buffer_t *) coredev->buffers.next; - list_del(&cb->entry); +struct smscore_buffer_t *smscore_getbuffer(struct smscore_device_t *coredev) +{ + struct smscore_buffer_t *cb = NULL; - spin_unlock_irqrestore(&coredev->bufferslock, flags); + wait_event(coredev->buffer_mng_waitq, (cb = get_entry(coredev))); return cb; } @@ -1297,7 +1290,7 @@ int smsclient_sendrequest(struct smscore_client_t *client, EXPORT_SYMBOL_GPL(smsclient_sendrequest); -/* old GPIO managments implementation */ +/* old GPIO managements implementation */ int smscore_configure_gpio(struct smscore_device_t *coredev, u32 pin, struct smscore_config_gpio *pinconfig) { @@ -1511,8 +1504,7 @@ int smscore_gpio_set_level(struct smscore_device_t *coredev, u8 PinNum, u32 msgData[3]; /* keep it 3 ! */ } *pMsg; - if ((NewLevel > 1) || (PinNum > MAX_GPIO_PIN_NUMBER) || - (PinNum > MAX_GPIO_PIN_NUMBER)) + if ((NewLevel > 1) || (PinNum > MAX_GPIO_PIN_NUMBER)) return -EINVAL; totalLen = sizeof(struct SmsMsgHdr_ST) + |