[PATCH] spi: Use reinit_completion at appropriate places

[PATCH] spi: Use reinit_completion at appropriate places

[Axel Lin]

Calling init_completion() once is enough.
For the rest of the iterations, call reinit_completion() instead.

Cc: Jonas Gorski <jogo-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>
Cc: Florian Fainelli <florian-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>
Cc: Tanguy Bouzeloc <tanguy.bouzeloc-HH44TBFINEIAvxtiuMwx3w@public.gmane.org>
Cc: Uwe Kleine-König <u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Signed-off-by: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
---
 drivers/spi/spi-bcm63xx-hsspi.c | 3 ++-
 drivers/spi/spi-bcm63xx.c       | 3 ++-
 drivers/spi/spi-efm32.c         | 3 ++-
 drivers/spi/spi-imx.c           | 2 +-
 4 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index b528f9f..3ad3e0c 100644
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
@@ -180,7 +180,7 @@ static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t)
 	while (pending > 0) {
 		int curr_step = min_t(int, step_size, pending);
 
-		init_completion(&bs->done);
+		reinit_completion(&bs->done);
 		if (tx) {
 			memcpy_toio(bs->fifo + HSSPI_OPCODE_LEN, tx, curr_step);
 			tx += curr_step;
@@ -369,6 +369,7 @@ static int bcm63xx_hsspi_probe(struct platform_device *pdev)
 	bs->fifo = (u8 __iomem *)(bs->regs + HSSPI_FIFO_REG(0));
 
 	mutex_init(&bs->bus_mutex);
+	init_completion(&bs->done);
 
 	master->bus_num = HSSPI_BUS_NUM;
 	master->num_chipselect = 8;
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 6922935..9f57758 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -169,7 +169,7 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *first,
 			       transfer_list);
 	}
 
-	init_completion(&bs->done);
+	reinit_completion(&bs->done);
 
 	/* Fill in the Message control register */
 	msg_ctl = (len << SPI_BYTE_CNT_SHIFT);
@@ -353,6 +353,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
 	}
 
 	bs = spi_master_get_devdata(master);
+	init_completion(&bs->done);
 
 	platform_set_drvdata(pdev, master);
 	bs->pdev = pdev;
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index d4d3cc5..03cbb5e 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -198,7 +198,7 @@ static int efm32_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 
 	efm32_spi_filltx(ddata);
 
-	init_completion(&ddata->done);
+	reinit_completion(&ddata->done);
 
 	efm32_spi_write32(ddata, REG_IF_TXBL | REG_IF_RXDATAV, REG_IEN);
 
@@ -349,6 +349,7 @@ static int efm32_spi_probe(struct platform_device *pdev)
 	ddata->bitbang.txrx_bufs = efm32_spi_txrx_bufs;
 
 	spin_lock_init(&ddata->lock);
+	init_completion(&ddata->done);
 
 	ddata->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(ddata->clk)) {
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 8a77b7b..2ccfde6 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -740,7 +740,7 @@ static int spi_imx_transfer(struct spi_device *spi,
 	spi_imx->count = transfer->len;
 	spi_imx->txfifo = 0;
 
-	init_completion(&spi_imx->xfer_done);
+	reinit_completion(&spi_imx->xfer_done);
 
 	spi_imx_push(spi_imx);
 
-- 
1.8.1.2



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Re: [PATCH] spi: Use reinit_completion at appropriate places

[Mark Brown]

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On Sun, Feb 09, 2014 at 11:06:04AM +0800, Axel Lin wrote:
> Calling init_completion() once is enough.
> For the rest of the iterations, call reinit_completion() instead.

Applied, thanks.

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