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authorJames Morris <james.l.morris@oracle.com>2014-11-19 21:32:12 +1100
committerJames Morris <james.l.morris@oracle.com>2014-11-19 21:32:12 +1100
commitb10778a00d40b3d9fdaaf5891e802794781ff71c (patch)
tree6ba4cbac86eecedc3f30650e7f764ecf00c83898 /drivers/media/usb/usbvision/usbvision-core.c
parent594081ee7145cc30a3977cb4e218f81213b63dc5 (diff)
parentbfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 (diff)
Merge commit 'v3.17' into next
Diffstat (limited to 'drivers/media/usb/usbvision/usbvision-core.c')
-rw-r--r--drivers/media/usb/usbvision/usbvision-core.c16
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;
}
/*******************************