1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index 460e22dee36d..a3f79c495a41 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -298,6 +298,8 @@ void dma_buf_unmap_attachment(struct dma_buf_attachment *attach,
                                 struct sg_table *sg_table,
                                 enum dma_data_direction direction)
 {
+        might_sleep();
+
         if (WARN_ON(!attach || !attach->dmabuf || !sg_table))
                 return;