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authorTrent Piepho <xyzzy@speakeasy.org>2007-10-10 12:37:43 +0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-10-10 20:35:29 +0400
commita991f44b79fa49b281eb078eed4a76a42101012a (patch)
tree5a6b7a4ce700ef8bcdf59f816c0c04b5e64d215b /drivers/media/video/vivi.c
parente77e2c2f2989eefff7e1c0fff9cb72afaedf6796 (diff)
downloadlinux-a991f44b79fa49b281eb078eed4a76a42101012a.tar.xz
V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry
The rest of V4L files. There is one list_for_each+list_entry in cpia_pp.c that wasn't changed because it expects the loop iterator to remain NULL if the list is empty. A bug in vivi is fixed; the 'safe' version needs to be used because the loop deletes the list entries. Simplify a second loop in vivi and get rid if an un-used variable in that loop. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/vivi.c')
-rw-r--r--drivers/media/video/vivi.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 61a6608d6e61..b532aa280a1b 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -507,7 +507,6 @@ static void vivi_stop_thread(struct vivi_dmaqueue *dma_q)
static int restart_video_queue(struct vivi_dmaqueue *dma_q)
{
struct vivi_buffer *buf, *prev;
- struct list_head *item;
dprintk(1,"%s dma_q=0x%08lx\n",__FUNCTION__,(unsigned long)dma_q);
@@ -521,9 +520,7 @@ static int restart_video_queue(struct vivi_dmaqueue *dma_q)
// vivi_start_thread(dma_q);
/* cancel all outstanding capture / vbi requests */
- list_for_each(item,&dma_q->active) {
- buf = list_entry(item, struct vivi_buffer, vb.queue);
-
+ list_for_each_entry_safe(buf, prev, &dma_q->active, vb.queue) {
list_del(&buf->vb.queue);
buf->vb.state = STATE_ERROR;
wake_up(&buf->vb.done);
@@ -982,31 +979,25 @@ static int vidioc_s_ctrl (struct file *file, void *priv,
static int vivi_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
- struct vivi_dev *h,*dev = NULL;
+ struct vivi_dev *dev;
struct vivi_fh *fh;
- struct list_head *list;
- enum v4l2_buf_type type = 0;
int i;
printk(KERN_DEBUG "vivi: open called (minor=%d)\n",minor);
- list_for_each(list,&vivi_devlist) {
- h = list_entry(list, struct vivi_dev, vivi_devlist);
- if (h->vfd.minor == minor) {
- dev = h;
- type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- }
- }
- if (NULL == dev)
- return -ENODEV;
+ list_for_each_entry(dev, &vivi_devlist, vivi_devlist)
+ if (dev->vfd.minor == minor)
+ goto found;
+ return -ENODEV;
+found:
/* If more than one user, mutex should be added */
dev->users++;
- dprintk(1,"open minor=%d type=%s users=%d\n",
- minor,v4l2_type_names[type],dev->users);
+ dprintk(1, "open minor=%d type=%s users=%d\n", minor,
+ v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users);
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh),GFP_KERNEL);