From: Hans Verkuil Date: Mon, 14 May 2012 13:17:35 +0000 (-0300) Subject: [media] v4l: fix compiler warnings X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e92ba2830b62ba6315d48083bb7f02d3148d77db;p=linux-beck.git [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 Acked-by: Janne Grunau Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c index 141f9c23a5ca..ac3dd733ab81 100644 --- a/drivers/media/video/au0828/au0828-video.c +++ b/drivers/media/video/au0828/au0828-video.c @@ -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 */ diff --git a/drivers/media/video/cx23885/cx23888-ir.c b/drivers/media/video/cx23885/cx23888-ir.c index bb1ce346425d..c2bc39c58f82 100644 --- a/drivers/media/video/cx23885/cx23888-ir.c +++ b/drivers/media/video/cx23885/cx23888-ir.c @@ -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) diff --git a/drivers/media/video/cx25840/cx25840-ir.c b/drivers/media/video/cx25840/cx25840-ir.c index 13c380ebb562..38ce76ed1924 100644 --- a/drivers/media/video/cx25840/cx25840-ir.c +++ b/drivers/media/video/cx25840/cx25840-ir.c @@ -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 diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index e2a7b77c39c7..d7e2a3dc5525 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -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; +#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 - /* 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 */ return 0; } diff --git a/drivers/media/video/hdpvr/hdpvr-control.c b/drivers/media/video/hdpvr/hdpvr-control.c index 068df4ba3f51..ae8f229d1141 100644 --- a/drivers/media/video/hdpvr/hdpvr-control.c +++ b/drivers/media/video/hdpvr/hdpvr-control.c @@ -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); diff --git a/drivers/media/video/hdpvr/hdpvr-video.c b/drivers/media/video/hdpvr/hdpvr-video.c index 11ffe9cc1780..0e9e156bb2aa 100644 --- a/drivers/media/video/hdpvr/hdpvr-video.c +++ b/drivers/media/video/hdpvr/hdpvr-video.c @@ -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, diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 417034eb6ad2..6de10b1e7251 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -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; diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c index c2882fa5be85..19ea780b16ff 100644 --- a/drivers/media/video/sn9c102/sn9c102_core.c +++ b/drivers/media/video/sn9c102/sn9c102_core.c @@ -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);