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path: root/drivers/media/video/videobuf-dma-contig.c
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Diffstat (limited to 'drivers/media/video/videobuf-dma-contig.c')
-rw-r--r--drivers/media/video/videobuf-dma-contig.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c
index 6ff9e4bac3ea..c9691115f2d2 100644
--- a/drivers/media/video/videobuf-dma-contig.c
+++ b/drivers/media/video/videobuf-dma-contig.c
@@ -28,7 +28,6 @@ struct videobuf_dma_contig_memory {
void *vaddr;
dma_addr_t dma_handle;
unsigned long size;
- int is_userptr;
};
#define MAGIC_DC_MEM 0x0733ac61
@@ -63,7 +62,7 @@ static void videobuf_vm_close(struct vm_area_struct *vma)
struct videobuf_dma_contig_memory *mem;
dev_dbg(q->dev, "munmap %p q=%p\n", map, q);
- mutex_lock(&q->vb_lock);
+ videobuf_queue_lock(q);
/* We need first to cancel streams, before unmapping */
if (q->streaming)
@@ -103,7 +102,7 @@ static void videobuf_vm_close(struct vm_area_struct *vma)
kfree(map);
- mutex_unlock(&q->vb_lock);
+ videobuf_queue_unlock(q);
}
}
@@ -120,7 +119,6 @@ static const struct vm_operations_struct videobuf_vm_ops = {
*/
static void videobuf_dma_contig_user_put(struct videobuf_dma_contig_memory *mem)
{
- mem->is_userptr = 0;
mem->dma_handle = 0;
mem->size = 0;
}
@@ -147,7 +145,6 @@ static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
offset = vb->baddr & ~PAGE_MASK;
mem->size = PAGE_ALIGN(vb->size + offset);
- mem->is_userptr = 0;
ret = -EINVAL;
down_read(&mm->mmap_sem);
@@ -181,9 +178,6 @@ static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
pages_done++;
}
- if (!ret)
- mem->is_userptr = 1;
-
out_up:
up_read(&current->mm->mmap_sem);
@@ -349,10 +343,11 @@ void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
enum v4l2_buf_type type,
enum v4l2_field field,
unsigned int msize,
- void *priv)
+ void *priv,
+ struct mutex *ext_lock)
{
videobuf_queue_core_init(q, ops, dev, irqlock, type, field, msize,
- priv, &qops);
+ priv, &qops, ext_lock);
}
EXPORT_SYMBOL_GPL(videobuf_queue_dma_contig_init);