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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-03-21 10:24:22 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-03-21 11:26:45 +0300
commit87e332d56b2c7dc6733f690c9069f4fe75f21c9d (patch)
treefc83506527f804eb1522e850b121598cefc5e0a1 /drivers/dma-buf
parent3c66f4aa7f3cb6579dfe977c05fcb5db25b41cd7 (diff)
downloadlinux-87e332d56b2c7dc6733f690c9069f4fe75f21c9d.tar.xz
dma-buf: Update docs for SYNC ioctl
Just a bit of wording polish plus mentioning that it can fail and must be restarted. Requested by Sumit. v2: Fix them typos (Hans). Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tiago Vignatti <tiago.vignatti@intel.com> Cc: Stéphane Marchesin <marcheu@chromium.org> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Daniel Vetter <daniel.vetter@intel.com> CC: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Cc: intel-gfx@lists.freedesktop.org Cc: devel@driverdev.osuosl.org Cc: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/dma-buf')
-rw-r--r--drivers/dma-buf/dma-buf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 774a60f4309a..4a2c07ee6677 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -612,7 +612,7 @@ EXPORT_SYMBOL_GPL(dma_buf_begin_cpu_access);
* @dmabuf: [in] buffer to complete cpu access for.
* @direction: [in] length of range for cpu access.
*
- * This call must always succeed.
+ * Can return negative error values, returns 0 on success.
*/
int dma_buf_end_cpu_access(struct dma_buf *dmabuf,
enum dma_data_direction direction)