system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-23 12:56:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

V4L/DVB: v4l videobuf: remove mmap_free callback

Browse source 
Remove the mmap_free callback from struct videobuf_qtype_ops.

All implementations of this callback do the same trivial check: return
-EBUSY if any buffer is mmapped. That can also be tested in the
videobuf core.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-03-28 07:54:29 -03:00 committed by Mauro Carvalho Chehab
parent 33435167e6
commit 53aaf07637
5 changed files with 4 additions and 52 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/media/video/videobuf-core.c
View file

@ -311,20 +311,18 @@ static void videobuf_status(struct videobuf_queue *q, struct v4l2_buffer *b,
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
int i;
int rc;
if (!q)
return 0;
MAGIC_CHECK(q->int_ops->magic, MAGIC_QTYPE_OPS);
rc = CALL(q, mmap_free, q);
for (i = 0; i < VIDEO_MAX_FRAME; i++)
if (q->bufs[i] && q->bufs[i]->map)
return -EBUSY;
q->is_mmapped = 0;
if (rc < 0)
return rc;
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
if (NULL == q->bufs[i])
continue;
@ -333,7 +331,7 @@ static int __videobuf_mmap_free(struct videobuf_queue *q)
q->bufs[i] = NULL;
}
return rc;
return 0;
}
int videobuf_mmap_free(struct videobuf_queue *q)

14
drivers/media/video/videobuf-dma-contig.c
View file

@ -263,19 +263,6 @@ static int __videobuf_iolock(struct videobuf_queue *q,
return 0;
}
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
unsigned int i;
dev_dbg(q->dev, "%s\n", __func__);
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
if (q->bufs[i] && q->bufs[i]->map)
return -EBUSY;
}
return 0;
}
static int __videobuf_mmap_mapper(struct videobuf_queue *q,
struct vm_area_struct *vma)
{
@ -424,7 +411,6 @@ static struct videobuf_qtype_ops qops = {
.alloc = __videobuf_alloc,
.iolock = __videobuf_iolock,
.mmap_free = __videobuf_mmap_free,
.mmap_mapper = __videobuf_mmap_mapper,
.video_copy_to_user = __videobuf_copy_to_user,
.copy_stream = __videobuf_copy_stream,

15
drivers/media/video/videobuf-dma-sg.c
View file

@ -548,20 +548,6 @@ static int __videobuf_sync(struct videobuf_queue *q,
return videobuf_dma_sync(q, &mem->dma);
}
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
int i;
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
if (q->bufs[i]) {
if (q->bufs[i]->map)
return -EBUSY;
}
}
return 0;
}
static int __videobuf_mmap_mapper(struct videobuf_queue *q,
struct vm_area_struct *vma)
{
@ -711,7 +697,6 @@ static struct videobuf_qtype_ops sg_ops = {
.alloc = __videobuf_alloc,
.iolock = __videobuf_iolock,
.sync = __videobuf_sync,
.mmap_free = __videobuf_mmap_free,
.mmap_mapper = __videobuf_mmap_mapper,
.video_copy_to_user = __videobuf_copy_to_user,
.copy_stream = __videobuf_copy_stream,

16
drivers/media/video/videobuf-vmalloc.c
View file

@ -235,21 +235,6 @@ static int __videobuf_sync(struct videobuf_queue *q,
return 0;
}
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
unsigned int i;
dprintk(1, "%s\n", __func__);
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
if (q->bufs[i]) {
if (q->bufs[i]->map)
return -EBUSY;
}
}
return 0;
}
static int __videobuf_mmap_mapper(struct videobuf_queue *q,
struct vm_area_struct *vma)
{
@ -385,7 +370,6 @@ static struct videobuf_qtype_ops qops = {
.alloc = __videobuf_alloc,
.iolock = __videobuf_iolock,
.sync = __videobuf_sync,
.mmap_free = __videobuf_mmap_free,
.mmap_mapper = __videobuf_mmap_mapper,
.video_copy_to_user = __videobuf_copy_to_user,
.copy_stream = __videobuf_copy_stream,

1
include/media/videobuf-core.h
View file

@ -144,7 +144,6 @@ struct videobuf_qtype_ops {
size_t pos,
int vbihack,
int nonblocking);
int (*mmap_free) (struct videobuf_queue *q);
int (*mmap_mapper) (struct videobuf_queue *q,
struct vm_area_struct *vma);
};