linux-kernel - [PATCH v2] spi: mxs: cleanup wait_for

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Date:	Thu,  5 Feb 2015 09:47:06 -0500
From:	Nicholas Mc Guire <hofrat@...dl.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <hofrat@...dl.org>
Subject: [PATCH v2] 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@...dl.org>
---

v2: fixup my slightly brain-dead indentation as suggested by Mark Brown 
    <broonie@...nel.org>.

This patch was only compile tested with mxs_defconfig
(implies CONFIG_SPI_MXS=y)

Patch is against 3.19.0-rc7 (localversion-next is -next-20150204)

 drivers/spi/spi-mxs.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 4045a1e..d051312 100644
--- 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);
-- 
1.7.10.4

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