mirror of https://gitee.com/openkylin/linux.git
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>
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@ -290,12 +290,12 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
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* bus, or started a new i2c message
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*/
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if (iicstat & S3C2410_IICSTAT_LASTBIT &&
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if (iicstat & S3C2410_IICSTAT_LASTBIT &&
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!(i2c->msg->flags & I2C_M_IGNORE_NAK)) {
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/* ack was not received... */
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dev_dbg(i2c->dev, "ack was not received\n");
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s3c24xx_i2c_stop(i2c, -EREMOTEIO);
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s3c24xx_i2c_stop(i2c, -ENXIO);
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goto out_ack;
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}
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@ -305,7 +305,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
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i2c->state = STATE_WRITE;
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/* terminate the transfer if there is nothing to do
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* (used by the i2c probe to find devices */
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* as this is used by the i2c probe to find devices. */
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if (is_lastmsg(i2c) && i2c->msg->len == 0) {
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s3c24xx_i2c_stop(i2c, 0);
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