spi_s3c24xx driver must init completion

From: Ben Dooks <[email protected]>

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.

---
 drivers/spi/spi_s3c24xx.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -192,8 +192,11 @@ static int s3c24xx_spi_txrx(struct spi_d
 	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;

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