[PATCH 2/3] dma: add __must_check annotation for dmaengine_pause()

[Sebastian Andrzej Siewior]

In 8250-omap I learned it the hard way that ignoring the return code
of dmaengine_pause() might be bad because the underlying DMA driver
might not support the function at all and so not doing what one is
expecting.
This patch adds the __must_check annotation as suggested by Russell King.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 include/linux/dmaengine.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 8ad9a4e839f6..4eac4716bded 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -825,7 +825,7 @@ static inline int dmaengine_terminate_all(struct dma_chan *chan)
 	return -ENOSYS;
 }
 
-static inline int dmaengine_pause(struct dma_chan *chan)
+static inline int __must_check dmaengine_pause(struct dma_chan *chan)
 {
 	if (chan->device->device_pause)
 		return chan->device->device_pause(chan);
-- 
2.5.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/