linux-kernel - [PATCH 1/1] i2c: at91: fix code checker warnings

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Date:	Thu, 11 Jun 2015 11:16:32 +0200
From:	Cyrille Pitchen <cyrille.pitchen@...el.com>
To:	<ludovic.desroches@...el.com>, <wsa@...-dreams.de>,
	<linux-i2c@...r.kernel.org>
CC:	<nicolas.ferre@...el.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Cyrille Pitchen <cyrille.pitchen@...el.com>
Subject: [PATCH 1/1] i2c: at91: fix code checker warnings

buf_len is a size_t, so unsigned but was tested with '<= 0'.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@...el.com>
---
 drivers/i2c/busses/i2c-at91.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 0d2dc7d..967c0cb 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -232,7 +232,7 @@ static void at91_twi_dma_cleanup(struct at91_twi_dev *dev)
 
 static void at91_twi_write_next_byte(struct at91_twi_dev *dev)
 {
-	if (dev->buf_len <= 0)
+	if (!dev->buf_len)
 		return;
 
 	/* 8bit write works with and without FIFO */
@@ -275,7 +275,7 @@ static void at91_twi_write_data_dma(struct at91_twi_dev *dev)
 	struct dma_chan *chan_tx = dma->chan_tx;
 	unsigned int sg_len = 1;
 
-	if (dev->buf_len <= 0)
+	if (!dev->buf_len)
 		return;
 
 	dma->direction = DMA_TO_DEVICE;
@@ -347,7 +347,7 @@ error:
 
 static void at91_twi_read_next_byte(struct at91_twi_dev *dev)
 {
-	if (dev->buf_len <= 0)
+	if (!dev->buf_len)
 		return;
 
 	/* 8bit read works with and without FIFO */
-- 
1.8.2.2

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