[media] usbvision: coding style

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 149 insertions, 179 deletions

diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 375355a8fe1c..6083137f0bf8 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -56,7 +56,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/videodev2.h>
 #include <linux/i2c.h>
 
@@ -70,8 +70,8 @@
 #include "usbvision.h"
 #include "usbvision-cards.h"
 
-#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
- Dwaine Garden <DwaineGarden@rogers.com>"
+#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, \
+Dwaine Garden <DwaineGarden@rogers.com>"
 #define DRIVER_NAME "usbvision"
 #define DRIVER_ALIAS "USBVision"
 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
@@ -82,9 +82,9 @@
 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
 USBVISION_DRIVER_VERSION_MINOR,\
 USBVISION_DRIVER_VERSION_PATCHLEVEL)
-#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
- "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
- "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
+#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) \
+"." __stringify(USBVISION_DRIVER_VERSION_MINOR) \
+"." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
 
 #define ENABLE_HEXDUMP  0       /* Enable if you need it */
 
@@ -96,16 +96,16 @@ USBVISION_DRIVER_VERSION_PATCHLEVEL)
                                 __func__, __LINE__ , ## args); \
         }
 #else
-        #define PDEBUG(level, fmt, args...) do {} while(0)
+        #define PDEBUG(level, fmt, args...) do {} while (0)
 #endif
 
-#define DBG_IO          1<<1
-#define DBG_PROBE       1<<2
-#define DBG_MMAP        1<<3
+#define DBG_IO          (1 << 1)
+#define DBG_PROBE       (1 << 2)
+#define DBG_MMAP        (1 << 3)
 
 /* String operations */
-#define rmspace(str)    while(*str==' ') str++;
-#define goto2next(str)  while(*str!=' ') str++; while(*str==' ') str++;
+#define rmspace(str)    while (*str == ' ') str++;
+#define goto2next(str)  while (*str != ' ') str++; while (*str == ' ') str++;
 
 
 /* sequential number of usbvision device */
@@ -205,7 +205,7 @@ static ssize_t show_hue(struct device *cd,
         struct v4l2_control ctrl;
         ctrl.id = V4L2_CID_HUE;
         ctrl.value = 0;
-        if(usbvision->user)
+        if (usbvision->user)
                 call_all(usbvision, core, g_ctrl, &ctrl);
         return sprintf(buf, "%d\n", ctrl.value);
 }
@@ -220,7 +220,7 @@ static ssize_t show_contrast(struct device *cd,
         struct v4l2_control ctrl;
         ctrl.id = V4L2_CID_CONTRAST;
         ctrl.value = 0;
-        if(usbvision->user)
+        if (usbvision->user)
                 call_all(usbvision, core, g_ctrl, &ctrl);
         return sprintf(buf, "%d\n", ctrl.value);
 }
@@ -235,7 +235,7 @@ static ssize_t show_brightness(struct device *cd,
         struct v4l2_control ctrl;
         ctrl.id = V4L2_CID_BRIGHTNESS;
         ctrl.value = 0;
-        if(usbvision->user)
+        if (usbvision->user)
                 call_all(usbvision, core, g_ctrl, &ctrl);
         return sprintf(buf, "%d\n", ctrl.value);
 }
@@ -250,7 +250,7 @@ static ssize_t show_saturation(struct device *cd,
         struct v4l2_control ctrl;
         ctrl.id = V4L2_CID_SATURATION;
         ctrl.value = 0;
-        if(usbvision->user)
+        if (usbvision->user)
                 call_all(usbvision, core, g_ctrl, &ctrl);
         return sprintf(buf, "%d\n", ctrl.value);
 }
@@ -263,7 +263,7 @@ static ssize_t show_streaming(struct device *cd,
                 container_of(cd, struct video_device, dev);
         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
         return sprintf(buf, "%s\n",
-                       YES_NO(usbvision->streaming==stream_on?1:0));
+                       YES_NO(usbvision->streaming == stream_on ? 1 : 0));
 }
 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
 
@@ -274,7 +274,7 @@ static ssize_t show_compression(struct device *cd,
                 container_of(cd, struct video_device, dev);
         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
         return sprintf(buf, "%s\n",
-                       YES_NO(usbvision->isoc_mode==ISOC_MODE_COMPRESS));
+                       YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS));
 }
 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
 
@@ -291,35 +291,36 @@ static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
 static void usbvision_create_sysfs(struct video_device *vdev)
 {
         int res;
+
         if (!vdev)
                 return;
         do {
                 res = device_create_file(&vdev->dev, &dev_attr_version);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_model);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_hue);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_contrast);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_brightness);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_saturation);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_streaming);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_compression);
-                if (res<0)
+                if (res < 0)
                         break;
                 res = device_create_file(&vdev->dev, &dev_attr_bridge);
-                if (res>=0)
+                if (res >= 0)
                         return;
         } while (0);
 
@@ -363,7 +364,7 @@ static int usbvision_v4l2_open(struct file *file)
         else {
                 /* Allocate memory for the scratch ring buffer */
                 err_code = usbvision_scratch_alloc(usbvision);
-                if (isoc_mode==ISOC_MODE_COMPRESS) {
+                if (isoc_mode == ISOC_MODE_COMPRESS) {
                         /* Allocate intermediate decompression buffers
                            only if needed */
                         err_code = usbvision_decompress_alloc(usbvision);
@@ -385,7 +386,7 @@ static int usbvision_v4l2_open(struct file *file)
                 /* Send init sequence only once, it's large! */
                 if (!usbvision->initialized) {
                         int setup_ok = 0;
-                        setup_ok = usbvision_setup(usbvision,isoc_mode);
+                        setup_ok = usbvision_setup(usbvision, isoc_mode);
                         if (setup_ok)
                                 usbvision->initialized = 1;
                         else
@@ -396,7 +397,7 @@ static int usbvision_v4l2_open(struct file *file)
                         usbvision_begin_streaming(usbvision);
                         err_code = usbvision_init_isoc(usbvision);
                         /* device must be initialized before isoc transfer */
-                        usbvision_muxsel(usbvision,0);
+                        usbvision_muxsel(usbvision, 0);
                         usbvision->user++;
                 } else {
                         if (power_on_at_open) {
@@ -463,7 +464,7 @@ static int usbvision_v4l2_close(struct file *file)
  *
  */
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-static int vidioc_g_register (struct file *file, void *priv,
+static int vidioc_g_register(struct file *file, void *priv,
                                 struct v4l2_dbg_register *reg)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -484,7 +485,7 @@ static int vidioc_g_register (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_s_register (struct file *file, void *priv,
+static int vidioc_s_register(struct file *file, void *priv,
                                 struct v4l2_dbg_register *reg)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -493,7 +494,7 @@ static int vidioc_s_register (struct file *file, void *priv,
         if (!v4l2_chip_match_host(&reg->match))
                 return -EINVAL;
         /* NT100x has a 8-bit register space */
-        err_code = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
+        err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val);
         if (err_code < 0) {
                 dev_err(&usbvision->vdev->dev,
                         "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n",
@@ -504,7 +505,7 @@ static int vidioc_s_register (struct file *file, void *priv,
 }
 #endif
 
-static int vidioc_querycap (struct file *file, void  *priv,
+static int vidioc_querycap(struct file *file, void  *priv,
                                         struct v4l2_capability *vc)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -523,7 +524,7 @@ static int vidioc_querycap (struct file *file, void  *priv,
         return 0;
 }
 
-static int vidioc_enum_input (struct file *file, void *priv,
+static int vidioc_enum_input(struct file *file, void *priv,
                                 struct v4l2_input *vi)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -531,14 +532,14 @@ static int vidioc_enum_input (struct file *file, void *priv,
 
         if (vi->index >= usbvision->video_inputs)
                 return -EINVAL;
-        if (usbvision->have_tuner) {
+        if (usbvision->have_tuner)
                 chan = vi->index;
-        } else {
+        else
                 chan = vi->index + 1; /* skip Television string*/
-        }
+
         /* Determine the requested input characteristics
            specific for each usbvision card model */
-        switch(chan) {
+        switch (chan) {
         case 0:
                 if (usbvision_device_data[usbvision->dev_model].video_channels == 4) {
                         strcpy(vi->name, "White Video Input");
@@ -552,20 +553,18 @@ static int vidioc_enum_input (struct file *file, void *priv,
                 break;
         case 1:
                 vi->type = V4L2_INPUT_TYPE_CAMERA;
-                if (usbvision_device_data[usbvision->dev_model].video_channels == 4) {
+                if (usbvision_device_data[usbvision->dev_model].video_channels == 4)
                         strcpy(vi->name, "Green Video Input");
-                } else {
+                else
                         strcpy(vi->name, "Composite Video Input");
-                }
                 vi->std = V4L2_STD_PAL;
                 break;
         case 2:
                 vi->type = V4L2_INPUT_TYPE_CAMERA;
-                if (usbvision_device_data[usbvision->dev_model].video_channels == 4) {
+                if (usbvision_device_data[usbvision->dev_model].video_channels == 4)
                         strcpy(vi->name, "Yellow Video Input");
-                } else {
+                else
                         strcpy(vi->name, "S-Video Input");
-                }
                 vi->std = V4L2_STD_PAL;
                 break;
         case 3:
@@ -577,7 +576,7 @@ static int vidioc_enum_input (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *input)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
@@ -585,7 +584,7 @@ static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
         return 0;
 }
 
-static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
+static int vidioc_s_input(struct file *file, void *priv, unsigned int input)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
@@ -600,11 +599,11 @@ static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
         return 0;
 }
 
-static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
-        usbvision->tvnorm_id=*id;
+        usbvision->tvnorm_id = *id;
 
         call_all(usbvision, core, s_std, usbvision->tvnorm_id);
         /* propagate the change to the decoder */
@@ -613,14 +612,14 @@ static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
         return 0;
 }
 
-static int vidioc_g_tuner (struct file *file, void *priv,
+static int vidioc_g_tuner(struct file *file, void *priv,
                                 struct v4l2_tuner *vt)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
         if (!usbvision->have_tuner || vt->index)        /* Only tuner 0 */
                 return -EINVAL;
-        if(usbvision->radio) {
+        if (usbvision->radio) {
                 strcpy(vt->name, "Radio");
                 vt->type = V4L2_TUNER_RADIO;
         } else {
@@ -632,7 +631,7 @@ static int vidioc_g_tuner (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_s_tuner (struct file *file, void *priv,
+static int vidioc_s_tuner(struct file *file, void *priv,
                                 struct v4l2_tuner *vt)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -646,23 +645,22 @@ static int vidioc_s_tuner (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_g_frequency (struct file *file, void *priv,
+static int vidioc_g_frequency(struct file *file, void *priv,
                                 struct v4l2_frequency *freq)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
         freq->tuner = 0; /* Only one tuner */
-        if(usbvision->radio) {
+        if (usbvision->radio)
                 freq->type = V4L2_TUNER_RADIO;
-        } else {
+        else
                 freq->type = V4L2_TUNER_ANALOG_TV;
-        }
         freq->frequency = usbvision->freq;
 
         return 0;
 }
 
-static int vidioc_s_frequency (struct file *file, void *priv,
+static int vidioc_s_frequency(struct file *file, void *priv,
                                 struct v4l2_frequency *freq)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -677,30 +675,27 @@ static int vidioc_s_frequency (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
 
-        if(usbvision->radio) {
-                strcpy(a->name,"Radio");
-        } else {
+        if (usbvision->radio)
+                strcpy(a->name, "Radio");
+        else
                 strcpy(a->name, "TV");
-        }
 
         return 0;
 }
 
-static int vidioc_s_audio (struct file *file, void *fh,
+static int vidioc_s_audio(struct file *file, void *fh,
                           struct v4l2_audio *a)
 {
-        if(a->index) {
+        if (a->index)
                 return -EINVAL;
-        }
-
         return 0;
 }
 
-static int vidioc_queryctrl (struct file *file, void *priv,
+static int vidioc_queryctrl(struct file *file, void *priv,
                             struct v4l2_queryctrl *ctrl)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -713,52 +708,53 @@ static int vidioc_queryctrl (struct file *file, void *priv,
         return 0;
 }
 
-static int vidioc_g_ctrl (struct file *file, void *priv,
+static int vidioc_g_ctrl(struct file *file, void *priv,
                                 struct v4l2_control *ctrl)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
-        call_all(usbvision, core, g_ctrl, ctrl);
 
+        call_all(usbvision, core, g_ctrl, ctrl);
         return 0;
 }
 
-static int vidioc_s_ctrl (struct file *file, void *priv,
+static int vidioc_s_ctrl(struct file *file, void *priv,
                                 struct v4l2_control *ctrl)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
-        call_all(usbvision, core, s_ctrl, ctrl);
 
+        call_all(usbvision, core, s_ctrl, ctrl);
         return 0;
 }
 
-static int vidioc_reqbufs (struct file *file,
+static int vidioc_reqbufs(struct file *file,
                            void *priv, struct v4l2_requestbuffers *vr)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
         int ret;
 
-        RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
+        RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES);
 
         /* Check input validity:
            the user must do a VIDEO CAPTURE and MMAP method. */
         if (vr->memory != V4L2_MEMORY_MMAP)
                 return -EINVAL;
 
-        if(usbvision->streaming == stream_on) {
-                if ((ret = usbvision_stream_interrupt(usbvision)))
+        if (usbvision->streaming == stream_on) {
+                ret = usbvision_stream_interrupt(usbvision);
+                if (ret)
                         return ret;
         }
 
         usbvision_frames_free(usbvision);
         usbvision_empty_framequeues(usbvision);
-        vr->count = usbvision_frames_alloc(usbvision,vr->count);
+        vr->count = usbvision_frames_alloc(usbvision, vr->count);
 
         usbvision->cur_frame = NULL;
 
         return 0;
 }
 
-static int vidioc_querybuf (struct file *file,
+static int vidioc_querybuf(struct file *file,
                             void *priv, struct v4l2_buffer *vb)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -766,48 +762,45 @@ static int vidioc_querybuf (struct file *file,
 
         /* FIXME : must control
            that buffers are mapped (VIDIOC_REQBUFS has been called) */
-        if(vb->index>=usbvision->num_frames)  {
+        if (vb->index >= usbvision->num_frames)
                 return -EINVAL;
-        }
         /* Updating the corresponding frame state */
         vb->flags = 0;
         frame = &usbvision->frame[vb->index];
-        if(frame->grabstate >= frame_state_ready)
+        if (frame->grabstate >= frame_state_ready)
                 vb->flags |= V4L2_BUF_FLAG_QUEUED;
-        if(frame->grabstate >= frame_state_done)
+        if (frame->grabstate >= frame_state_done)
                 vb->flags |= V4L2_BUF_FLAG_DONE;
-        if(frame->grabstate == frame_state_unused)
+        if (frame->grabstate == frame_state_unused)
                 vb->flags |= V4L2_BUF_FLAG_MAPPED;
         vb->memory = V4L2_MEMORY_MMAP;
 
-        vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
+        vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size);
 
         vb->memory = V4L2_MEMORY_MMAP;
         vb->field = V4L2_FIELD_NONE;
-        vb->length = usbvision->curwidth*
-                usbvision->curheight*
+        vb->length = usbvision->curwidth *
+                usbvision->curheight *
                 usbvision->palette.bytes_per_pixel;
         vb->timestamp = usbvision->frame[vb->index].timestamp;
         vb->sequence = usbvision->frame[vb->index].sequence;
         return 0;
 }
 
-static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
         struct usbvision_frame *frame;
         unsigned long lock_flags;
 
         /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
-        if(vb->index>=usbvision->num_frames)  {
+        if (vb->index >= usbvision->num_frames)
                 return -EINVAL;
-        }
 
         frame = &usbvision->frame[vb->index];
 
-        if (frame->grabstate != frame_state_unused) {
+        if (frame->grabstate != frame_state_unused)
                 return -EAGAIN;
-        }
 
         /* Mark it as ready and enqueue frame */
         frame->grabstate = frame_state_ready;
@@ -826,7 +819,7 @@ static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
         return 0;
 }
 
-static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
         int ret;
@@ -882,7 +875,7 @@ static int vidioc_streamoff(struct file *file,
         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
                 return -EINVAL;
 
-        if(usbvision->streaming == stream_on) {
+        if (usbvision->streaming == stream_on) {
                 usbvision_stream_interrupt(usbvision);
                 /* Stop all video streamings */
                 call_all(usbvision, video, s_stream, 0);
@@ -892,18 +885,17 @@ static int vidioc_streamoff(struct file *file,
         return 0;
 }
 
-static int vidioc_enum_fmt_vid_cap (struct file *file, void  *priv,
+static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
                                         struct v4l2_fmtdesc *vfd)
 {
-        if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
+        if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1)
                 return -EINVAL;
-        }
-        strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
+        strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc);
         vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
         return 0;
 }
 
-static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
                                         struct v4l2_format *vf)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
@@ -911,32 +903,31 @@ static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
         vf->fmt.pix.height = usbvision->curheight;
         vf->fmt.pix.pixelformat = usbvision->palette.format;
         vf->fmt.pix.bytesperline =
-                usbvision->curwidth*usbvision->palette.bytes_per_pixel;
-        vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
+                usbvision->curwidth * usbvision->palette.bytes_per_pixel;
+        vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight;
         vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
         vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
 
         return 0;
 }
 
-static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
                                struct v4l2_format *vf)
 {
         struct usb_usbvision *usbvision = video_drvdata(file);
         int format_idx;
 
         /* Find requested format in available ones */
-        for(format_idx=0;format_idx<USBVISION_SUPPORTED_PALETTES;format_idx++) {
-                if(vf->fmt.pix.pixelformat ==
+        for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) {
+                if (vf->fmt.pix.pixelformat ==
                    usbvision_v4l2_format[format_idx].format) {
                         usbvision->palette = usbvision_v4l2_format[format_idx];
                         break;
                 }
         }
         /* robustness */
-        if(format_idx == USBVISION_SUPPORTED_PALETTES) {
+        if (format_idx == USBVISION_SUPPORTED_PALETTES)
                 return -EINVAL;
-        }
         RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
         RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
 
@@ -953,13 +944,14 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
         struct usb_usbvision *usbvision = video_drvdata(file);
         int ret;
 
-        if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
+        ret = vidioc_try_fmt_vid_cap(file, priv, vf);
+        if (ret)
                 return ret;
-        }
 
         /* stop io in case it is already in progress */
-        if(usbvision->streaming == stream_on) {
-                if ((ret = usbvision_stream_interrupt(usbvision)))
+        if (usbvision->streaming == stream_on) {
+                ret = usbvision_stream_interrupt(usbvision);
+                if (ret)
                         return ret;
         }
         usbvision_frames_free(usbvision);
@@ -979,8 +971,7 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
         struct usb_usbvision *usbvision = video_drvdata(file);
         int noblock = file->f_flags & O_NONBLOCK;
         unsigned long lock_flags;
-
-        int ret,i;
+        int ret, i;
         struct usbvision_frame *frame;
 
         PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
@@ -992,15 +983,15 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
         /* This entry point is compatible with the mmap routines
            so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
            to get frames or call read on the device. */
-        if(!usbvision->num_frames) {
+        if (!usbvision->num_frames) {
                 /* First, allocate some frames to work with
                    if this has not been done with VIDIOC_REQBUF */
                 usbvision_frames_free(usbvision);
                 usbvision_empty_framequeues(usbvision);
-                usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
+                usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES);
         }
 
-        if(usbvision->streaming != stream_on) {
+        if (usbvision->streaming != stream_on) {
                 /* no stream is running, make it running ! */
                 usbvision->streaming = stream_on;
                 call_all(usbvision, video, s_stream, 1);
@@ -1008,9 +999,9 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
 
         /* Then, enqueue as many frames as possible
            (like a user of VIDIOC_QBUF would do) */
-        for(i=0;i<usbvision->num_frames;i++) {
+        for (i = 0; i < usbvision->num_frames; i++) {
                 frame = &usbvision->frame[i];
-                if(frame->grabstate == frame_state_unused) {
+                if (frame->grabstate == frame_state_unused) {
                         /* Mark it as ready and enqueue frame */
                         frame->grabstate = frame_state_ready;
                         frame->scanstate = scan_state_scanning;
@@ -1029,7 +1020,7 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
 
         /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
         if (list_empty(&(usbvision->outqueue))) {
-                if(noblock)
+                if (noblock)
                         return -EAGAIN;
 
                 ret = wait_event_interruptible
@@ -1059,9 +1050,8 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
         if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
                 count = frame->scanlength - frame->bytes_read;
 
-        if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
+        if (copy_to_user(buf, frame->data + frame->bytes_read, count))
                 return -EFAULT;
-        }
 
         frame->bytes_read += count;
         PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
@@ -1069,12 +1059,12 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
                (unsigned long)count, frame->bytes_read);
 
         /* For now, forget the frame if it has not been read in one shot. */
-/*      if (frame->bytes_read >= frame->scanlength) {*/ /* All data has been read */
+/*      if (frame->bytes_read >= frame->scanlength) {*/ /* All data has been read */
                 frame->bytes_read = 0;
 
                 /* Mark it as available to be used again. */
                 frame->grabstate = frame_state_unused;
-/*      } */
+/*      } */
 
         return count;
 }
@@ -1089,9 +1079,8 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 
         PDEBUG(DBG_MMAP, "mmap");
 
-        if (!USBVISION_IS_OPERATIONAL(usbvision)) {
+        if (!USBVISION_IS_OPERATIONAL(usbvision))
                 return -EFAULT;
-        }
 
         if (!(vma->vm_flags & VM_WRITE) ||
             size != PAGE_ALIGN(usbvision->max_frame_size)) {
@@ -1115,7 +1104,6 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 
         pos = usbvision->frame[i].data;
         while (size > 0) {
-
                 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
                         PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
                         return -EAGAIN;
@@ -1145,9 +1133,8 @@ static int usbvision_radio_open(struct file *file)
                         "%s: Someone tried to open an already opened USBVision Radio!\n",
                                 __func__);
                 err_code = -EBUSY;
-        }
-        else {
-                if(power_on_at_open) {
+        } else {
+                if (power_on_at_open) {
                         usbvision_reset_power_off_timer(usbvision);
                         if (usbvision->power == 0) {
                                 usbvision_power_on(usbvision);
@@ -1190,12 +1177,12 @@ static int usbvision_radio_close(struct file *file)
         PDEBUG(DBG_IO, "");
 
         /* Set packet size to 0 */
-        usbvision->iface_alt=0;
+        usbvision->iface_alt = 0;
         err_code = usb_set_interface(usbvision->dev, usbvision->iface,
                                     usbvision->iface_alt);
 
         usbvision_audio_off(usbvision);
-        usbvision->radio=0;
+        usbvision->radio = 0;
         usbvision->user--;
 
         if (power_on_at_open) {
@@ -1222,7 +1209,7 @@ static const struct v4l2_file_operations usbvision_fops = {
         .read           = usbvision_v4l2_read,
         .mmap           = usbvision_v4l2_mmap,
         .unlocked_ioctl = video_ioctl2,
-/*      .poll          = video_poll, */
+/*      .poll           = video_poll, */
 };
 
 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
@@ -1258,11 +1245,11 @@ static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
 
 static struct video_device usbvision_video_template = {
         .fops           = &usbvision_fops,
-        .ioctl_ops      = &usbvision_ioctl_ops,
+        .ioctl_ops      = &usbvision_ioctl_ops,
         .name           = "usbvision-video",
         .release        = video_device_release,
-        .tvnorms              = USBVISION_NORMS,
-        .current_norm         = V4L2_STD_PAL
+        .tvnorms        = USBVISION_NORMS,
+        .current_norm   = V4L2_STD_PAL
 };
 
 
@@ -1292,9 +1279,9 @@ static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
 
 static struct video_device usbvision_radio_template = {
         .fops           = &usbvision_radio_fops,
-        .name           = "usbvision-radio",
+        .name           = "usbvision-radio",
         .release        = video_device_release,
-        .ioctl_ops      = &usbvision_radio_ioctl_ops,
+        .ioctl_ops      = &usbvision_radio_ioctl_ops,
 
         .tvnorms              = USBVISION_NORMS,
         .current_norm         = V4L2_STD_PAL
@@ -1315,9 +1302,8 @@ static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
         }
 
         vdev = video_device_alloc();
-        if (NULL == vdev) {
+        if (NULL == vdev)
                 return NULL;
-        }
         *vdev = *vdev_template;
         vdev->lock = &usbvision->v4l2_lock;
         vdev->v4l2_dev = &usbvision->v4l2_dev;
@@ -1333,11 +1319,10 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision)
         if (usbvision->rdev) {
                 PDEBUG(DBG_PROBE, "unregister %s [v4l2]",
                        video_device_node_name(usbvision->rdev));
-                if (video_is_registered(usbvision->rdev)) {
+                if (video_is_registered(usbvision->rdev))
                         video_unregister_device(usbvision->rdev);
-                } else {
+                else
                         video_device_release(usbvision->rdev);
-                }
                 usbvision->rdev = NULL;
         }
 
@@ -1345,11 +1330,10 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision)
         if (usbvision->vdev) {
                 PDEBUG(DBG_PROBE, "unregister %s [v4l2]",
                        video_device_node_name(usbvision->vdev));
-                if (video_is_registered(usbvision->vdev)) {
+                if (video_is_registered(usbvision->vdev))
                         video_unregister_device(usbvision->vdev);
-                } else {
+                else
                         video_device_release(usbvision->vdev);
-                }
                 usbvision->vdev = NULL;
         }
 }
@@ -1361,14 +1345,10 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
         usbvision->vdev = usbvision_vdev_init(usbvision,
                                               &usbvision_video_template,
                                               "USBVision Video");
-        if (usbvision->vdev == NULL) {
+        if (usbvision->vdev == NULL)
                 goto err_exit;
-        }
-        if (video_register_device(usbvision->vdev,
-                                  VFL_TYPE_GRABBER,
-                                  video_nr)<0) {
+        if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0)
                 goto err_exit;
-        }
         printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n",
                usbvision->nr, video_device_node_name(usbvision->vdev));
 
@@ -1378,14 +1358,10 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
                 usbvision->rdev = usbvision_vdev_init(usbvision,
                                                       &usbvision_radio_template,
                                                       "USBVision Radio");
-                if (usbvision->rdev == NULL) {
+                if (usbvision->rdev == NULL)
                         goto err_exit;
-                }
-                if (video_register_device(usbvision->rdev,
-                                          VFL_TYPE_RADIO,
-                                          radio_nr)<0) {
+                if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0)
                         goto err_exit;
-                }
                 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n",
                        usbvision->nr, video_device_node_name(usbvision->rdev));
         }
@@ -1459,9 +1435,7 @@ static void usbvision_release(struct usb_usbvision *usbvision)
         usbvision_remove_sysfs(usbvision->vdev);
         usbvision_unregister_video(usbvision);
 
-        if (usbvision->ctrl_urb) {
-                usb_free_urb(usbvision->ctrl_urb);
-        }
+        usb_free_urb(usbvision->ctrl_urb);
 
         v4l2_device_unregister(&usbvision->v4l2_dev);
         kfree(usbvision);
@@ -1520,25 +1494,24 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
         const struct usb_host_interface *interface;
         struct usb_usbvision *usbvision = NULL;
         const struct usb_endpoint_descriptor *endpoint;
-        int model,i;
+        int model, i;
 
         PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
                                 dev->descriptor.idVendor,
                                 dev->descriptor.idProduct, ifnum);
 
         model = devid->driver_info;
-        if ( (model<0) || (model>=usbvision_device_data_size) ) {
-                PDEBUG(DBG_PROBE, "model out of bounds %d",model);
+        if (model < 0 || model >= usbvision_device_data_size) {
+                PDEBUG(DBG_PROBE, "model out of bounds %d", model);
                 return -ENODEV;
         }
         printk(KERN_INFO "%s: %s found\n", __func__,
                                 usbvision_device_data[model].model_string);
 
-        if (usbvision_device_data[model].interface >= 0) {
+        if (usbvision_device_data[model].interface >= 0)
                 interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0];
-        } else {
+        else
                 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
-        }
         endpoint = &interface->endpoint[1].desc;
         if (!usb_endpoint_xfer_isoc(endpoint)) {
                 dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n",
@@ -1559,33 +1532,31 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
                 return -ENOMEM;
         }
 
-        if (dev->descriptor.bNumConfigurations > 1) {
+        if (dev->descriptor.bNumConfigurations > 1)
                 usbvision->bridge_type = BRIDGE_NT1004;
-        } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
+        else if (model == DAZZLE_DVC_90_REV_1_SECAM)
                 usbvision->bridge_type = BRIDGE_NT1005;
-        } else {
+        else
                 usbvision->bridge_type = BRIDGE_NT1003;
-        }
         PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type);
 
         /* compute alternate max packet sizes */
         uif = dev->actconfig->interface[0];
 
-        usbvision->num_alt=uif->num_altsetting;
-        PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
-        usbvision->alt_max_pkt_size = kmalloc(32*
-                                              usbvision->num_alt,GFP_KERNEL);
+        usbvision->num_alt = uif->num_altsetting;
+        PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt);
+        usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL);
         if (usbvision->alt_max_pkt_size == NULL) {
                 dev_err(&intf->dev, "usbvision: out of memory!\n");
                 return -ENOMEM;
         }
 
-        for (i = 0; i < usbvision->num_alt ; i++) {
+        for (i = 0; i < usbvision->num_alt; i++) {
                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
                                       wMaxPacketSize);
                 usbvision->alt_max_pkt_size[i] =
                         (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
-                PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
+                PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i,
                        usbvision->alt_max_pkt_size[i]);
         }
 
@@ -1593,9 +1564,8 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
         usbvision->nr = usbvision_nr++;
 
         usbvision->have_tuner = usbvision_device_data[model].tuner;
-        if (usbvision->have_tuner) {
+        if (usbvision->have_tuner)
                 usbvision->tuner_type = usbvision_device_data[model].tuner_type;
-        }
 
         usbvision->dev_model = model;
         usbvision->remove_pending = 0;
@@ -1689,7 +1659,7 @@ static int __init usbvision_init(void)
         PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
 
         /* disable planar mode support unless compression enabled */
-        if (isoc_mode != ISOC_MODE_COMPRESS ) {
+        if (isoc_mode != ISOC_MODE_COMPRESS) {
                 /* FIXME : not the right way to set supported flag */
                 usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */
                 usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */
@@ -1706,10 +1676,10 @@ static int __init usbvision_init(void)
 
 static void __exit usbvision_exit(void)
 {
- PDEBUG(DBG_PROBE, "");
+        PDEBUG(DBG_PROBE, "");
 
- usb_deregister(&usbvision_driver);
- PDEBUG(DBG_PROBE, "success");
+        usb_deregister(&usbvision_driver);
+        PDEBUG(DBG_PROBE, "success");
 }
 
 module_init(usbvision_init);