diff options
-rw-r--r-- | drivers/media/video/videobuf-dma-contig.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c index 372b87efcd05..6ff9e4bac3ea 100644 --- a/drivers/media/video/videobuf-dma-contig.c +++ b/drivers/media/video/videobuf-dma-contig.c | |||
@@ -393,8 +393,10 @@ void videobuf_dma_contig_free(struct videobuf_queue *q, | |||
393 | } | 393 | } |
394 | 394 | ||
395 | /* read() method */ | 395 | /* read() method */ |
396 | dma_free_coherent(q->dev, mem->size, mem->vaddr, mem->dma_handle); | 396 | if (mem->vaddr) { |
397 | mem->vaddr = NULL; | 397 | dma_free_coherent(q->dev, mem->size, mem->vaddr, mem->dma_handle); |
398 | mem->vaddr = NULL; | ||
399 | } | ||
398 | } | 400 | } |
399 | EXPORT_SYMBOL_GPL(videobuf_dma_contig_free); | 401 | EXPORT_SYMBOL_GPL(videobuf_dma_contig_free); |
400 | 402 | ||