From: Sylvain Lemieux slemieux@tycoint.com
Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_write" when parameters alen = 0 and len = 0.
Signed-off-by: Sylvain Lemieux slemieux@tycoint.com --- drivers/i2c/lpc32xx_i2c.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/i2c/lpc32xx_i2c.c b/drivers/i2c/lpc32xx_i2c.c index 4c66769..7f4eccd 100644 --- a/drivers/i2c/lpc32xx_i2c.c +++ b/drivers/i2c/lpc32xx_i2c.c @@ -200,6 +200,8 @@ static int lpc32xx_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, if (alen | length) /* Address slave in write mode */ writel((dev<<1) | LPC32XX_I2C_TX_START, &i2c->tx); + else + return 0; /* write address bytes */ while (alen) { /* wait for transmit fifo not full */