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[media] v4l: fix compiler warnings 

media_build/v4l/au0828-video.c: In function 'au0828_irq_callback':
media_build/v4l/au0828-video.c:123:6: warning: variable 'rc' set but not used [-Wunused-but-set-variable]
media_build/v4l/cx23888-ir.c: In function 'pulse_clocks_to_clock_divider':
media_build/v4l/cx23888-ir.c:334:6: warning: variable 'rem' set but not used [-Wunused-but-set-variable]
media_build/v4l/cx25840-ir.c: In function 'pulse_clocks_to_clock_divider':
media_build/v4l/cx25840-ir.c:319:6: warning: variable 'rem' set but not used [-Wunused-but-set-variable]
media_build/v4l/cx25840-ir.c: In function 'cx25840_ir_tx_write':
media_build/v4l/cx25840-ir.c:863:21: warning: variable 'c' set but not used [-Wunused-but-set-variable]
media_build/v4l/em28xx-audio.c: In function 'snd_em28xx_hw_capture_params':
media_build/v4l/em28xx-audio.c:346:31: warning: variable 'format' set but not used [-Wunused-but-set-variable]
media_build/v4l/em28xx-audio.c:346:25: warning: variable 'rate' set but not used [-Wunused-but-set-variable]
media_build/v4l/em28xx-audio.c:346:15: warning: variable 'channels' set but not used [-Wunused-but-set-variable]
media_build/v4l/hdpvr-control.c: In function 'get_input_lines_info':
media_build/v4l/hdpvr-control.c:98:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/hdpvr-video.c: In function 'hdpvr_try_ctrl':
media_build/v4l/hdpvr-video.c:955:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/saa7134-video.c: In function 'saa7134_s_tuner':
media_build/v4l/saa7134-video.c:2030:6: warning: variable 'rx' set but not used [-Wunused-but-set-variable]
media_build/v4l/sn9c102_core.c: In function 'sn9c102_stream_interrupt':
media_build/v4l/sn9c102_core.c:998:7: warning: variable 'timeout' set but not used [-Wunused-but-set-variable]

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Janne Grunau <j@jannau.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-05-14 10:17:35 -03:00 committed by Mauro Carvalho Chehab
parent 30fdf03587
commit e92ba2830b
8 changed files with 17 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/media/video/au0828/au0828-video.c
View File

@ -120,7 +120,7 @@ static void au0828_irq_callback(struct urb *urb)
struct au0828_dmaqueue *dma_q = urb->context;
struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
unsigned long flags = 0;
int rc, i;
int i;
switch (urb->status) {
case 0: /* success */
@ -138,7 +138,7 @@ static void au0828_irq_callback(struct urb *urb)
/* Copy data from URB */
spin_lock_irqsave(&dev->slock, flags);
rc = dev->isoc_ctl.isoc_copy(dev, urb);
dev->isoc_ctl.isoc_copy(dev, urb);
spin_unlock_irqrestore(&dev->slock, flags);
/* Reset urb buffers */

4
drivers/media/video/cx23885/cx23888-ir.c
View File

@ -331,9 +331,7 @@ static u64 ns_to_pulse_clocks(u32 ns)
static u16 pulse_clocks_to_clock_divider(u64 count)
{
u32 rem;
rem = do_div(count, (FIFO_RXTX << 2) | 0x3);
do_div(count, (FIFO_RXTX << 2) | 0x3);
/* net result needs to be rounded down and decremented by 1 */
if (count > RXCLK_RCD + 1)

6
drivers/media/video/cx25840/cx25840-ir.c
View File

@ -316,9 +316,7 @@ static u64 ns_to_pulse_clocks(u32 ns)
static u16 pulse_clocks_to_clock_divider(u64 count)
{
u32 rem;
rem = do_div(count, (FIFO_RXTX << 2) | 0x3);
do_div(count, (FIFO_RXTX << 2) | 0x3);
/* net result needs to be rounded down and decremented by 1 */
if (count > RXCLK_RCD + 1)
@ -860,12 +858,10 @@ static int cx25840_ir_tx_write(struct v4l2_subdev *sd, u8 *buf, size_t count,
ssize_t *num)
{
struct cx25840_ir_state *ir_state = to_ir_state(sd);
struct i2c_client *c;
if (ir_state == NULL)
return -ENODEV;
c = ir_state->c;
#if 0
/*
* FIXME - the code below is an incomplete and untested sketch of what

13
drivers/media/video/em28xx/em28xx-audio.c
View File

@ -343,7 +343,6 @@ static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream)
static int snd_em28xx_hw_capture_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
unsigned int channels, rate, format;
int ret;
dprintk("Setting capture parameters\n");
@ -352,13 +351,17 @@ static int snd_em28xx_hw_capture_params(struct snd_pcm_substream *substream,
params_buffer_bytes(hw_params));
if (ret < 0)
return ret;
format = params_format(hw_params);
rate = params_rate(hw_params);
channels = params_channels(hw_params);
#if 0
/* TODO: set up em28xx audio chip to deliver the correct audio format,
current default is 48000hz multiplexed => 96000hz mono
which shouldn't matter since analogue TV only supports mono */
unsigned int channels, rate, format;
format = params_format(hw_params);
rate = params_rate(hw_params);
channels = params_channels(hw_params);
#endif
return 0;
}

2
drivers/media/video/hdpvr/hdpvr-control.c
View File

@ -113,6 +113,8 @@ int get_input_lines_info(struct hdpvr_device *dev)
"get input lines info returned: %d, %s\n", ret,
print_buf);
}
#else
(void)ret; /* suppress compiler warning */
#endif
lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
mutex_unlock(&dev->usbc_mutex);

2
drivers/media/video/hdpvr/hdpvr-video.c
View File

@ -994,7 +994,7 @@ static int hdpvr_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
default:
return -EINVAL;
}
return 0;
return ret;
}
static int vidioc_try_ext_ctrls(struct file *file, void *priv,

2
drivers/media/video/saa7134/saa7134-video.c
View File

@ -2036,7 +2036,7 @@ static int saa7134_s_tuner(struct file *file, void *priv,
mode = dev->thread.mode;
if (UNSET == mode) {
rx = saa7134_tvaudio_getstereo(dev);
mode = saa7134_tvaudio_rx2mode(t->rxsubchans);
mode = saa7134_tvaudio_rx2mode(rx);
}
if (mode != t->audmode)
dev->thread.mode = t->audmode;

4
drivers/media/video/sn9c102/sn9c102_core.c
View File

@ -995,10 +995,8 @@ static int sn9c102_stop_transfer(struct sn9c102_device* cam)
static int sn9c102_stream_interrupt(struct sn9c102_device* cam)
{
long timeout;
cam->stream = STREAM_INTERRUPT;
timeout = wait_event_timeout(cam->wait_stream,
wait_event_timeout(cam->wait_stream,
(cam->stream == STREAM_OFF) ||
(cam->state & DEV_DISCONNECTED),
SN9C102_URB_TIMEOUT);