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i2c-nomadik: corrrect returned error numbers

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The code was returning bad error numbers or just -1 in some cases.

Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Virupax Sadashivpetimath 2011-05-13 12:29:28 +02:00 committed by Ben Dooks
parent 2320f504d3
commit 99381bec0a
1 changed files with 6 additions and 4 deletions
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10
drivers/i2c/busses/i2c-nomadik.c
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@ -615,6 +615,8 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap,
cause >= ARRAY_SIZE(abort_causes)
? "unknown reason" : abort_causes[cause]);
status = status ? status : dev->result;
goto out;
}
udelay(I2C_DELAY);
@ -759,7 +761,7 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg)
| I2C_IT_RXFF | I2C_IT_RXFE));
if (dev->cli.count) {
dev->result = -1;
dev->result = -EIO;
dev_err(&dev->pdev->dev, "%lu bytes still remain to be"
"xfered\n", dev->cli.count);
(void) init_hw(dev);
@ -770,7 +772,7 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg)
/* Master Arbitration lost interrupt */
case I2C_IT_MAL:
dev->result = -1;
dev->result = -EIO;
(void) init_hw(dev);
i2c_set_bit(dev->virtbase + I2C_ICR, I2C_IT_MAL);
@ -784,7 +786,7 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg)
* during the transaction.
*/
case I2C_IT_BERR:
dev->result = -1;
dev->result = -EIO;
/* get the status */
if (((readl(dev->virtbase + I2C_SR) >> 2) & 0x3) == I2C_ABORT)
(void) init_hw(dev);
@ -800,7 +802,7 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg)
* the Tx FIFO is full.
*/
case I2C_IT_TXFOVR:
dev->result = -1;
dev->result = -EIO;
(void) init_hw(dev);
dev_err(&dev->pdev->dev, "Tx Fifo Over run\n");