There is no point to go throught the rest of the function if first call to dma_cookie_status() returned DMA_SUCCESS.
Signed-off-by: Andy Shevchenko <[email protected]> --- drivers/dma/txx9dmac.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c index a59fb48..59357db 100644 --- a/drivers/dma/txx9dmac.c +++ b/drivers/dma/txx9dmac.c @@ -962,15 +962,14 @@ txx9dmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) { - spin_lock_bh(&dc->lock); - txx9dmac_scan_descriptors(dc); - spin_unlock_bh(&dc->lock); + if (ret == DMA_SUCCESS) + return DMA_SUCCESS; - ret = dma_cookie_status(chan, cookie, txstate); - } + spin_lock_bh(&dc->lock); + txx9dmac_scan_descriptors(dc); + spin_unlock_bh(&dc->lock); - return ret; + return dma_cookie_status(chan, cookie, txstate); } static void txx9dmac_chain_dynamic(struct txx9dmac_chan *dc, -- 1.8.2.rc0.22.gb3600c3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
