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-rw-r--r--drivers/media/video/videobuf-dma-contig.c6
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}
399EXPORT_SYMBOL_GPL(videobuf_dma_contig_free); 401EXPORT_SYMBOL_GPL(videobuf_dma_contig_free);
400 402