spi: mxs: cleanup wait_for_completion return handling

return type of wait_for_completion_timeout is unsigned long not int, this
patch uses the return value of wait_for_completion_timeout in the condition
directly rather than adding a additional appropriately typed variable.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 4045a1e..5b0e9a3 100644 (file)
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -282,9 +282,8 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi,
        dmaengine_submit(desc);
        dma_async_issue_pending(ssp->dmach);
 
-       ret = wait_for_completion_timeout(&spi->c,
-                               msecs_to_jiffies(SSP_TIMEOUT));
-       if (!ret) {
+       if (!wait_for_completion_timeout(&spi->c,
+                                        msecs_to_jiffies(SSP_TIMEOUT))) {
                dev_err(ssp->dev, "DMA transfer timeout\n");
                ret = -ETIMEDOUT;
                dmaengine_terminate_all(ssp->dmach);