From 0de73abe5f5c2b58d66d6dcb7d44df05b0f73684 Mon Sep 17 00:00:00 2001 From: Liang Jie Date: Fri, 14 Nov 2025 16:47:25 +0800 Subject: [PATCH] iio: buffer: use dma_buf_unmap_attachment_unlocked() helper MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Replace open-coded dma_resv_lock()/dma_resv_unlock() around dma_buf_unmap_attachment() in iio_buffer_dmabuf_release() with the dma_buf_unmap_attachment_unlocked() helper. This aligns with the standard DMA-BUF API, avoids duplicating locking logic and eases future maintenance. No functional change. Reviewed-by: fanggeng Signed-off-by: Liang Jie Reviewed-by: Nuno Sá Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-buffer.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index f1448ae1b843f..b9ebb6f434047 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1563,9 +1563,7 @@ static void iio_buffer_dmabuf_release(struct kref *ref) struct iio_buffer *buffer = priv->buffer; struct dma_buf *dmabuf = attach->dmabuf; - dma_resv_lock(dmabuf->resv, NULL); - dma_buf_unmap_attachment(attach, priv->sgt, priv->dir); - dma_resv_unlock(dmabuf->resv); + dma_buf_unmap_attachment_unlocked(attach, priv->sgt, priv->dir); buffer->access->detach_dmabuf(buffer, priv->block); -- 2.47.3