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 dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html