diff options
Diffstat (limited to 'drivers/media/common/videobuf2/videobuf2-vmalloc.c')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-vmalloc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c index 7c635e292106..3f777068cd34 100644 --- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c +++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c @@ -133,13 +133,15 @@ static void vb2_vmalloc_put_userptr(void *buf_priv) if (!buf->vec->is_pfns) { n_pages = frame_vector_count(buf->vec); - pages = frame_vector_pages(buf->vec); if (vaddr) vm_unmap_ram((void *)vaddr, n_pages); if (buf->dma_dir == DMA_FROM_DEVICE || - buf->dma_dir == DMA_BIDIRECTIONAL) - for (i = 0; i < n_pages; i++) - set_page_dirty_lock(pages[i]); + buf->dma_dir == DMA_BIDIRECTIONAL) { + pages = frame_vector_pages(buf->vec); + if (!WARN_ON_ONCE(IS_ERR(pages))) + for (i = 0; i < n_pages; i++) + set_page_dirty_lock(pages[i]); + } } else { iounmap((__force void __iomem *)buf->vaddr); } @@ -440,4 +442,4 @@ EXPORT_SYMBOL_GPL(vb2_vmalloc_memops); MODULE_DESCRIPTION("vmalloc memory handling routines for videobuf2"); MODULE_AUTHOR("Pawel Osciak <pawel@osciak.com>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(DMA_BUF); +MODULE_IMPORT_NS("DMA_BUF"); |