diff options
Diffstat (limited to 'drivers/media/usb/usbvision/usbvision-core.c')
| -rw-r--r-- | drivers/media/usb/usbvision/usbvision-core.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/media/usb/usbvision/usbvision-core.c b/drivers/media/usb/usbvision/usbvision-core.c index 816b1cffab7..302aa07c458 100644 --- a/drivers/media/usb/usbvision/usbvision-core.c +++ b/drivers/media/usb/usbvision/usbvision-core.c @@ -1463,8 +1463,6 @@ static int usbvision_write_reg_irq(struct usb_usbvision *usbvision, int address, static int usbvision_init_compression(struct usb_usbvision *usbvision) { - int err_code = 0; - usbvision->last_isoc_frame_num = -1; usbvision->isoc_data_count = 0; usbvision->isoc_packet_count = 0; @@ -1475,7 +1473,7 @@ static int usbvision_init_compression(struct usb_usbvision *usbvision) usbvision->request_intra = 1; usbvision->isoc_measure_bandwidth_count = 0; - return err_code; + return 0; } /* this function measures the used bandwidth since last call @@ -1484,11 +1482,9 @@ static int usbvision_init_compression(struct usb_usbvision *usbvision) */ static int usbvision_measure_bandwidth(struct usb_usbvision *usbvision) { - int err_code = 0; - if (usbvision->isoc_measure_bandwidth_count < 2) { /* this gives an average bandwidth of 3 frames */ usbvision->isoc_measure_bandwidth_count++; - return err_code; + return 0; } if ((usbvision->isoc_packet_size > 0) && (usbvision->isoc_packet_count > 0)) { usbvision->used_bandwidth = usbvision->isoc_data_count / @@ -1499,7 +1495,7 @@ static int usbvision_measure_bandwidth(struct usb_usbvision *usbvision) usbvision->isoc_data_count = 0; usbvision->isoc_packet_count = 0; usbvision->isoc_skip_count = 0; - return err_code; + return 0; } static int usbvision_adjust_compression(struct usb_usbvision *usbvision) @@ -1546,26 +1542,24 @@ static int usbvision_adjust_compression(struct usb_usbvision *usbvision) static int usbvision_request_intra(struct usb_usbvision *usbvision) { - int err_code = 0; unsigned char buffer[1]; PDEBUG(DBG_IRQ, ""); usbvision->request_intra = 1; buffer[0] = 1; usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); - return err_code; + return 0; } static int usbvision_unrequest_intra(struct usb_usbvision *usbvision) { - int err_code = 0; unsigned char buffer[1]; PDEBUG(DBG_IRQ, ""); usbvision->request_intra = 0; buffer[0] = 0; usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); - return err_code; + return 0; } /******************************* |