diff options
Diffstat (limited to 'drivers/media/video/videobuf-dma-contig.c')
| -rw-r--r-- | drivers/media/video/videobuf-dma-contig.c | 15 |
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(¤t->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); |