From 4bb5eba06b4bc57e30b0f6336c9907e85c395197 Mon Sep 17 00:00:00 2001 From: Ben Dooks <ben-linux@fluff.org> Date: Tue, 15 Apr 2008 14:34:44 -0700 Subject: [PATCH] spi: spi_s3c24xx driver must init completion The s3c24xx_spi_txrx() function should initialise the completion each time before using it, otherwise we end up with the possibility of returning success before the interrupt handler has processed all the data. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- drivers/spi/spi_s3c24xx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index e75103aac790..6f2c79da984d 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -192,8 +192,11 @@ static int s3c24xx_spi_txrx(struct spi_device *spi, struct spi_transfer *t) hw->len = t->len; hw->count = 0; + init_completion(&hw->done); + /* send the first byte */ writeb(hw_txbyte(hw, 0), hw->regs + S3C2410_SPTDAT); + wait_for_completion(&hw->done); return hw->count; -- 2.20.1