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| author | Ben Dooks <ben-linux@fluff.org> | 2008-07-01 12:59:42 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-07-01 15:30:37 +0200 |
| commit | 63f5c2891eae6b4dd0538ef094e5f256d6150d7b (patch) | |
| tree | 80e2bf8859224af6818e1681366df774bcbde305 /drivers/i2c | |
| parent | I2C: S3C2410: Check ACK on byte transmission (diff) | |
| download | linux-63f5c2891eae6b4dd0538ef094e5f256d6150d7b.tar.xz linux-63f5c2891eae6b4dd0538ef094e5f256d6150d7b.zip | |
I2C: S3C2410: Fixup error codes returned rom a transfer.
The driver should be returning -ENXIO for transfers that do not
pass the initial address byte stage.
Note, also small tidyups to the driver comments in the area.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 7ad22c53564d..d2645da79a5a 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -290,12 +290,12 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) * bus, or started a new i2c message */ - if (iicstat & S3C2410_IICSTAT_LASTBIT && + if (iicstat & S3C2410_IICSTAT_LASTBIT && !(i2c->msg->flags & I2C_M_IGNORE_NAK)) { /* ack was not received... */ dev_dbg(i2c->dev, "ack was not received\n"); - s3c24xx_i2c_stop(i2c, -EREMOTEIO); + s3c24xx_i2c_stop(i2c, -ENXIO); goto out_ack; } @@ -305,7 +305,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) i2c->state = STATE_WRITE; /* terminate the transfer if there is nothing to do - * (used by the i2c probe to find devices */ + * as this is used by the i2c probe to find devices. */ if (is_lastmsg(i2c) && i2c->msg->len == 0) { s3c24xx_i2c_stop(i2c, 0); |