From mboxrd@z Thu Jan 1 00:00:00 1970 From: Axel Lin Subject: [PATCH] spi: atmel: Make current_remaining_bytes to be int Date: Thu, 27 Mar 2014 09:26:38 +0800 Message-ID: <1395883598.14364.0.camel@phoenix> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Wenyou Yang , linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Brown Return-path: Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Don't use unsigned for current_remaining_bytes so we can check current_remaining_bytes < 0 case. Use int is enough for current_remaining_bytes. Signed-off-by: Axel Lin Signed-off-by: Wenyou Yang --- drivers/spi/spi-atmel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 8005f98..485e6cc 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -224,7 +224,7 @@ struct atmel_spi { struct platform_device *pdev; struct spi_transfer *current_transfer; - unsigned long current_remaining_bytes; + int current_remaining_bytes; int done_status; struct completion xfer_completion; @@ -1110,6 +1110,8 @@ static int atmel_spi_one_transfer(struct spi_master *master, atmel_spi_next_xfer_pio(master, xfer); } else { as->current_remaining_bytes -= len; + if (as->current_remaining_bytes < 0) + as->current_remaining_bytes = 0; } } else { atmel_spi_next_xfer_pio(master, xfer); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html